oc-basic "Wrong value for ENTRY-OR-KEY" error on emacs master (29.x) [Was: Bibliographies on export with ox-context and ox-epub]

[Kaushal Modi <kaushal.modi@gmail.com>]

On Thu, Nov 25, 2021 at 6:21 AM juh <juh@mailbox.org> wrote:
> With cite_export: basic I get
>
> Wrong value for ENTRY-OR-KEY: nil

Hello,

I saw the ox-hugo CI fail with emacs master (29.0.50) over the past
few days with this backtrace, but this error is probably not related
to ox-hugo, and I need help confirming if that's the case.


=====

  signal(error ("Wrong value for ENTRY-OR-KEY: nil"))
  error("Wrong value for ENTRY-OR-KEY: %S" nil)
  org-cite-basic--get-field(author nil (:export-options (subtree)
:back-end #s(org-export-backend :name hugo :parent blackfriday
:transcoders ((code . org-hugo-kbd-tags-maybe) (example-block .
org-hugo-example-block) (export-block . org-hugo-export-block)
(export-snippet . org-hugo-export-snippet) (headline .
org-hugo-heading) (inner-template . org-hugo-inner-template)
(inline-src-block . org-hugo-inline-src-block) (keyword .
org-hugo-keyword) (link . org-hugo-link) (paragraph .
org-hugo-paragraph) (src-block . org-hugo-src-block) (special-block .
org-hugo-special-block)) :options ((:with-toc nil "toc"
org-hugo-export-with-toc) (:section-numbers nil "num"
org-hugo-export-with-section-numbers) (:author "AUTHOR" nil
user-full-name newline) (:creator "CREATOR" nil
org-hugo-export-creator-string) (:with-smart-quotes nil "'" nil)
(:with-special-strings nil "-" nil) (:with-sub-superscript nil "^"
...) (:hugo-with-locale "HUGO_WITH_LOCALE" nil nil)
(:hugo-front-matter-format "HUGO_FRONT_MATTER_FORMAT" nil
org-hugo-front-matter-format) (:hugo-level-offset "HUGO_LEVEL_OFFSET"
nil "1") (:hugo-preserve-filling "HUGO_PRESERVE_FILLING" nil
org-hugo-preserve-filling) (:hugo-delete-trailing-ws
"HUGO_DELETE_TRAILING_WS" nil org-hugo-delete-trailing-ws)
(:hugo-section "HUGO_SECTION" nil org-hugo-section) (:hugo-bundle
"HUGO_BUNDLE" nil nil) (:hugo-base-dir "HUGO_BASE_DIR" nil
org-hugo-base-dir) (:hugo-goldmark "HUGO_GOLDMARK" nil
org-hugo-goldmark) (:hugo-code-fence "HUGO_CODE_FENCE" nil t)
(:hugo-use-code-for-kbd "HUGO_USE_CODE_FOR_KBD" nil
org-hugo-use-code-for-kbd) (:hugo-prefer-hyphen-in-tags
"HUGO_PREFER_HYPHEN_IN_TAGS" nil org-hugo-prefer-hyphen-in-tags)
(:hugo-allow-spaces-in-tags "HUGO_ALLOW_SPACES_IN_TAGS" nil
org-hugo-allow-spaces-in-tags) (:hugo-auto-set-lastmod
"HUGO_AUTO_SET_LASTMOD" nil org-hugo-auto-set-lastmod)
(:hugo-custom-front-matter "HUGO_CUSTOM_FRONT_MATTER" nil nil space)
(:hugo-blackfriday "HUGO_BLACKFRIDAY" nil nil space)
(:hugo-front-matter-key-replace "HUGO_FRONT_MATTER_KEY_REPLACE" nil
nil space) (:hugo-date-format "HUGO_DATE_FORMAT" nil
org-hugo-date-format) (:hugo-paired-shortcodes
"HUGO_PAIRED_SHORTCODES" nil org-hugo-paired-shortcodes space)
(:hugo-pandoc-citations "HUGO_PANDOC_CITATIONS" nil nil)
(:bibliography "BIBLIOGRAPHY" nil nil newline) (:html-container
"HTML_CONTAINER" nil org-hugo-container-element)
(:html-container-class "HTML_CONTAINER_CLASS" nil "") (:hugo-aliases
"HUGO_ALIASES" nil nil space) (:hugo-audio "HUGO_AUDIO" nil nil) ...)
:filters ((:filter-body . org-hugo-body-filter)) :blocks nil :menu (72
"Export to Hugo-compatible Markdo..." (... ... ... ... ... ...)))
:translate-alist ((code . org-hugo-kbd-tags-maybe) (example-block .
org-hugo-example-block) (export-block . org-hugo-export-block)
(export-snippet . org-hugo-export-snippet) (headline .
org-hugo-heading) (inner-template . org-hugo-inner-template)
(inline-src-block . org-hugo-inline-src-block) (keyword .
org-hugo-keyword) (link . org-hugo-link) (paragraph .
org-hugo-paragraph) (src-block . org-hugo-src-block) (special-block .
org-hugo-special-block) (center-block . org-blackfriday-center-block)
(example-block . org-blackfriday-example-block) (fixed-width .
org-blackfriday-fixed-width) (footnote-reference .
org-blackfriday-footnote-reference) (inner-template .
org-blackfriday-inner-template) (italic . org-blackfriday-italic)
(item . org-blackfriday-item) (latex-environment .
org-blackfriday-latex-environment) (latex-fragment .
org-blackfriday-latex-fragment) (line-break . org-html-line-break)
(plain-list . org-blackfriday-plain-list) (plain-text .
org-blackfriday-plain-text) (quote-block .
org-blackfriday-quote-block) (radio-target .
org-blackfriday-radio-target) (special-block .
org-blackfriday-special-block) (src-block . org-blackfriday-src-block)
(strike-through . org-blackfriday-strike-through) (table-cell .
org-blackfriday-table-cell) (table-row . org-blackfriday-table-row)
(table . org-blackfriday-table) ...) :exported-data #<hash-table eq
5/4001 0x13a9641> :input-buffer "*Ox-hugo Pre-processed all-posts..."
:input-file "/home/runner/work/ox-hugo/ox-hug..." :with-toc nil
:section-numbers nil :author "" :creator "Emacs + Org mode + ox-hugo"
:with-smart-quotes nil :with-special-strings nil :with-sub-superscript
{} :hugo-with-locale nil :hugo-front-matter-format "toml"
:hugo-level-offset "1" ...))
  org-cite-basic--print-entry(nil nil (:export-options (subtree)
:back-end #s(org-export-backend :name hugo :parent blackfriday
:transcoders ((code . org-hugo-kbd-tags-maybe) (example-block .
org-hugo-example-block) (export-block . org-hugo-export-block)
(export-snippet . org-hugo-export-snippet) (headline .
org-hugo-heading) (inner-template . org-hugo-inner-template)
(inline-src-block . org-hugo-inline-src-block) (keyword .
org-hugo-keyword) (link . org-hugo-link) (paragraph .
org-hugo-paragraph) (src-block . org-hugo-src-block) (special-block .
org-hugo-special-block)) :options ((:with-toc nil "toc"
org-hugo-export-with-toc) (:section-numbers nil "num"
org-hugo-export-with-section-numbers) (:author "AUTHOR" nil
user-full-name newline) (:creator "CREATOR" nil
org-hugo-export-creator-string) (:with-smart-quotes nil "'" nil)
(:with-special-strings nil "-" nil) (:with-sub-superscript nil "^"
...) (:hugo-with-locale "HUGO_WITH_LOCALE" nil nil)
(:hugo-front-matter-format "HUGO_FRONT_MATTER_FORMAT" nil
org-hugo-front-matter-format) (:hugo-level-offset "HUGO_LEVEL_OFFSET"
nil "1") (:hugo-preserve-filling "HUGO_PRESERVE_FILLING" nil
org-hugo-preserve-filling) (:hugo-delete-trailing-ws
"HUGO_DELETE_TRAILING_WS" nil org-hugo-delete-trailing-ws)
(:hugo-section "HUGO_SECTION" nil org-hugo-section) (:hugo-bundle
"HUGO_BUNDLE" nil nil) (:hugo-base-dir "HUGO_BASE_DIR" nil
org-hugo-base-dir) (:hugo-goldmark "HUGO_GOLDMARK" nil
org-hugo-goldmark) (:hugo-code-fence "HUGO_CODE_FENCE" nil t)
(:hugo-use-code-for-kbd "HUGO_USE_CODE_FOR_KBD" nil
org-hugo-use-code-for-kbd) (:hugo-prefer-hyphen-in-tags
"HUGO_PREFER_HYPHEN_IN_TAGS" nil org-hugo-prefer-hyphen-in-tags)
(:hugo-allow-spaces-in-tags "HUGO_ALLOW_SPACES_IN_TAGS" nil
org-hugo-allow-spaces-in-tags) (:hugo-auto-set-lastmod
"HUGO_AUTO_SET_LASTMOD" nil org-hugo-auto-set-lastmod)
(:hugo-custom-front-matter "HUGO_CUSTOM_FRONT_MATTER" nil nil space)
(:hugo-blackfriday "HUGO_BLACKFRIDAY" nil nil space)
(:hugo-front-matter-key-replace "HUGO_FRONT_MATTER_KEY_REPLACE" nil
nil space) (:hugo-date-format "HUGO_DATE_FORMAT" nil
org-hugo-date-format) (:hugo-paired-shortcodes
"HUGO_PAIRED_SHORTCODES" nil org-hugo-paired-shortcodes space)
(:hugo-pandoc-citations "HUGO_PANDOC_CITATIONS" nil nil)
(:bibliography "BIBLIOGRAPHY" nil nil newline) (:html-container
"HTML_CONTAINER" nil org-hugo-container-element)
(:html-container-class "HTML_CONTAINER_CLASS" nil "") (:hugo-aliases
"HUGO_ALIASES" nil nil space) (:hugo-audio "HUGO_AUDIO" nil nil) ...)
:filters ((:filter-body . org-hugo-body-filter)) :blocks nil :menu (72
"Export to Hugo-compatible Markdo..." (... ... ... ... ... ...)))
:translate-alist ((code . org-hugo-kbd-tags-maybe) (example-block .
org-hugo-example-block) (export-block . org-hugo-export-block)
(export-snippet . org-hugo-export-snippet) (headline .
org-hugo-heading) (inner-template . org-hugo-inner-template)
(inline-src-block . org-hugo-inline-src-block) (keyword .
org-hugo-keyword) (link . org-hugo-link) (paragraph .
org-hugo-paragraph) (src-block . org-hugo-src-block) (special-block .
org-hugo-special-block) (center-block . org-blackfriday-center-block)
(example-block . org-blackfriday-example-block) (fixed-width .
org-blackfriday-fixed-width) (footnote-reference .
org-blackfriday-footnote-reference) (inner-template .
org-blackfriday-inner-template) (italic . org-blackfriday-italic)
(item . org-blackfriday-item) (latex-environment .
org-blackfriday-latex-environment) (latex-fragment .
org-blackfriday-latex-fragment) (line-break . org-html-line-break)
(plain-list . org-blackfriday-plain-list) (plain-text .
org-blackfriday-plain-text) (quote-block .
org-blackfriday-quote-block) (radio-target .
org-blackfriday-radio-target) (special-block .
org-blackfriday-special-block) (src-block . org-blackfriday-src-block)
(strike-through . org-blackfriday-strike-through) (table-cell .
org-blackfriday-table-cell) (table-row . org-blackfriday-table-row)
(table . org-blackfriday-table) ...) :exported-data #<hash-table eq
5/4001 0x13a9641> :input-buffer "*Ox-hugo Pre-processed all-posts..."
:input-file "/home/runner/work/ox-hugo/ox-hug..." :with-toc nil
:section-numbers nil :author "" :creator "Emacs + Org mode + ox-hugo"
:with-smart-quotes nil :with-special-strings nil :with-sub-superscript
{} :hugo-with-locale nil :hugo-front-matter-format "toml"
:hugo-level-offset "1" ...))
  #f(compiled-function (k) #<bytecode -0x1031153bd444570b>)("OrgCitations")
  mapconcat(#f(compiled-function (k) #<bytecode -0x1031153bd444570b>)
("OrgCitations") "\n")
  org-cite-basic-export-bibliography(("OrgCitations")
("/home/runner/work/ox-hugo/...") nil nil #s(org-export-backend :name
hugo :parent blackfriday :transcoders ((code .
org-hugo-kbd-tags-maybe) (example-block . org-hugo-example-block)
(export-block . org-hugo-export-block) (export-snippet .
org-hugo-export-snippet) (headline . org-hugo-heading) (inner-template
. org-hugo-inner-template) (inline-src-block .
org-hugo-inline-src-block) (keyword . org-hugo-keyword) (link .
org-hugo-link) (paragraph . org-hugo-paragraph) (src-block .
org-hugo-src-block) (special-block . org-hugo-special-block)) :options
((:with-toc nil "toc" org-hugo-export-with-toc) (:section-numbers nil
"num" org-hugo-export-with-section-numbers) (:author "AUTHOR" nil
user-full-name newline) (:creator "CREATOR" nil
org-hugo-export-creator-string) (:with-smart-quotes nil "'" nil)
(:with-special-strings nil "-" nil) (:with-sub-superscript nil "^"
...) (:hugo-with-locale "HUGO_WITH_LOCALE" nil nil)
(:hugo-front-matter-format "HUGO_FRONT_MATTER_FORMAT" nil
org-hugo-front-matter-format) (:hugo-level-offset "HUGO_LEVEL_OFFSET"
nil "1") (:hugo-preserve-filling "HUGO_PRESERVE_FILLING" nil
org-hugo-preserve-filling) (:hugo-delete-trailing-ws
"HUGO_DELETE_TRAILING_WS" nil org-hugo-delete-trailing-ws)
(:hugo-section "HUGO_SECTION" nil org-hugo-section) (:hugo-bundle
"HUGO_BUNDLE" nil nil) (:hugo-base-dir "HUGO_BASE_DIR" nil
org-hugo-base-dir) (:hugo-goldmark "HUGO_GOLDMARK" nil
org-hugo-goldmark) (:hugo-code-fence "HUGO_CODE_FENCE" nil t)
(:hugo-use-code-for-kbd "HUGO_USE_CODE_FOR_KBD" nil
org-hugo-use-code-for-kbd) (:hugo-prefer-hyphen-in-tags
"HUGO_PREFER_HYPHEN_IN_TAGS" nil org-hugo-prefer-hyphen-in-tags)
(:hugo-allow-spaces-in-tags "HUGO_ALLOW_SPACES_IN_TAGS" nil
org-hugo-allow-spaces-in-tags) (:hugo-auto-set-lastmod
"HUGO_AUTO_SET_LASTMOD" nil org-hugo-auto-set-lastmod)
(:hugo-custom-front-matter "HUGO_CUSTOM_FRONT_MATTER" nil nil space)
(:hugo-blackfriday "HUGO_BLACKFRIDAY" nil nil space)
(:hugo-front-matter-key-replace "HUGO_FRONT_MATTER_KEY_REPL..." nil
nil space) (:hugo-date-format "HUGO_DATE_FORMAT" nil
org-hugo-date-format) (:hugo-paired-shortcodes
"HUGO_PAIRED_SHORTCODES" nil org-hugo-paired-shortcodes space) ...)
:filters ((:filter-body . org-hugo-body-filter)) :blocks nil :menu (72
"Export to Hugo-compatible ..." (... ... ... ... ... ...)))
(:export-options (subtree) :back-end #s(org-export-backend :name hugo
:parent blackfriday :transcoders (... ... ... ... ... ... ... ... ...
... ... ...) :options (... ... ... ... ... ... ... ... ... ... ... ...
... ... ... ... ... ... ... ... ... ... ... ... ... ... ...) :filters
(...) :blocks nil :menu (72 "Export to Hugo-compatible ..." ...))
:translate-alist ((code . org-hugo-kbd-tags-maybe) (example-block .
org-hugo-example-block) (export-block . org-hugo-export-block)
(export-snippet . org-hugo-export-snippet) (headline .
org-hugo-heading) (inner-template . org-hugo-inner-template)
(inline-src-block . org-hugo-inline-src-block) (keyword .
org-hugo-keyword) (link . org-hugo-link) (paragraph .
org-hugo-paragraph) (src-block . org-hugo-src-block) (special-block .
org-hugo-special-block) (center-block . org-blackfriday-center-block)
(example-block . org-blackfriday-example-block) (fixed-width .
org-blackfriday-fixed-width) (footnote-reference .
org-blackfriday-footnote-reference) (inner-template .
org-blackfriday-inner-template) (italic . org-blackfriday-italic)
(item . org-blackfriday-item) (latex-environment .
org-blackfriday-latex-environment) (latex-fragment .
org-blackfriday-latex-fragment) (line-break . org-html-line-break)
(plain-list . org-blackfriday-plain-list) (plain-text .
org-blackfriday-plain-text) (quote-block .
org-blackfriday-quote-block) (radio-target .
org-blackfriday-radio-target) ...) :exported-data #<hash-table eq
5/4001 0x13a9641> :input-buffer "*Ox-hugo Pre-processed all..."
:input-file "/home/runner/work/ox-hugo/..." :with-toc nil
:section-numbers nil :author "" :creator "Emacs + Org mode + ox-hugo"
:with-smart-quotes nil :with-special-strings nil :with-sub-superscript
{} ...))
  org-cite-export-bibliography((keyword (:key "PRINT_BIBLIOGRAPHY"
:value "" :begin 201170 :end 201192 :post-blank 1 :post-affiliated
201170 :parent (section (:begin 201090 :end 201192 :contents-begin
201090 :contents-end 201192 :post-blank 1 :post-affiliated 201090
:parent ...) (paragraph ... ...) (src-block ...) (paragraph ... ...)
#1))) nil (:export-options (subtree) :back-end #s(org-export-backend
:name hugo :parent blackfriday :transcoders ((code .
org-hugo-kbd-tags-maybe) (example-block . org-hugo-example-block)
(export-block . org-hugo-export-block) (export-snippet .
org-hugo-export-snippet) (headline . org-hugo-heading) (inner-template
. org-hugo-inner-template) (inline-src-block .
org-hugo-inline-src-block) (keyword . org-hugo-keyword) (link .
org-hugo-link) (paragraph . org-hugo-paragraph) (src-block .
org-hugo-src-block) (special-block . org-hugo-special-block)) :options
((:with-toc nil "toc" org-hugo-export-with-toc) (:section-numbers nil
"num" org-hugo-export-with-section-numbers) (:author "AUTHOR" nil
user-full-name newline) (:creator "CREATOR" nil
org-hugo-export-creator-string) (:with-smart-quotes nil "'" nil)
(:with-special-strings nil "-" nil) (:with-sub-superscript nil "^"
...) (:hugo-with-locale "HUGO_WITH_LOCALE" nil nil)
(:hugo-front-matter-format "HUGO_FRONT_MATTER_FORMAT" nil
org-hugo-front-matter-format) (:hugo-level-offset "HUGO_LEVEL_OFFSET"
nil "1") (:hugo-preserve-filling "HUGO_PRESERVE_FILLING" nil
org-hugo-preserve-filling) (:hugo-delete-trailing-ws
"HUGO_DELETE_TRAILING_WS" nil org-hugo-delete-trailing-ws)
(:hugo-section "HUGO_SECTION" nil org-hugo-section) (:hugo-bundle
"HUGO_BUNDLE" nil nil) (:hugo-base-dir "HUGO_BASE_DIR" nil
org-hugo-base-dir) (:hugo-goldmark "HUGO_GOLDMARK" nil
org-hugo-goldmark) (:hugo-code-fence "HUGO_CODE_FENCE" nil t)
(:hugo-use-code-for-kbd "HUGO_USE_CODE_FOR_KBD" nil
org-hugo-use-code-for-kbd) (:hugo-prefer-hyphen-in-tags
"HUGO_PREFER_HYPHEN_IN_TAGS" nil org-hugo-prefer-hyphen-in-tags)
(:hugo-allow-spaces-in-tags "HUGO_ALLOW_SPACES_IN_TAGS" nil
org-hugo-allow-spaces-in-tags) (:hugo-auto-set-lastmod
"HUGO_AUTO_SET_LASTMOD" nil org-hugo-auto-set-lastmod)
(:hugo-custom-front-matter "HUGO_CUSTOM_FRONT_MATTER" nil nil space)
(:hugo-blackfriday "HUGO_BLACKFRIDAY" nil nil space)
(:hugo-front-matter-key-replace "HUGO_FRONT_MATTER_KEY_REPLACE" nil
nil space) (:hugo-date-format "HUGO_DATE_FORMAT" nil
org-hugo-date-format) (:hugo-paired-shortcodes
"HUGO_PAIRED_SHORTCODES" nil org-hugo-paired-shortcodes space)
(:hugo-pandoc-citations "HUGO_PANDOC_CITATIONS" nil nil)
(:bibliography "BIBLIOGRAPHY" nil nil newline) (:html-container
"HTML_CONTAINER" nil org-hugo-container-element)
(:html-container-class "HTML_CONTAINER_CLASS" nil "") (:hugo-aliases
"HUGO_ALIASES" nil nil space) (:hugo-audio "HUGO_AUDIO" nil nil) ...)
:filters ((:filter-body . org-hugo-body-filter)) :blocks nil :menu (72
"Export to Hugo-compatible Markdo..." (... ... ... ... ... ...)))
:translate-alist ((code . org-hugo-kbd-tags-maybe) (example-block .
org-hugo-example-block) (export-block . org-hugo-export-block)
(export-snippet . org-hugo-export-snippet) (headline .
org-hugo-heading) (inner-template . org-hugo-inner-template)
(inline-src-block . org-hugo-inline-src-block) (keyword .
org-hugo-keyword) (link . org-hugo-link) (paragraph .
org-hugo-paragraph) (src-block . org-hugo-src-block) (special-block .
org-hugo-special-block) (center-block . org-blackfriday-center-block)
(example-block . org-blackfriday-example-block) (fixed-width .
org-blackfriday-fixed-width) (footnote-reference .
org-blackfriday-footnote-reference) (inner-template .
org-blackfriday-inner-template) (italic . org-blackfriday-italic)
(item . org-blackfriday-item) (latex-environment .
org-blackfriday-latex-environment) (latex-fragment .
org-blackfriday-latex-fragment) (line-break . org-html-line-break)
(plain-list . org-blackfriday-plain-list) (plain-text .
org-blackfriday-plain-text) (quote-block .
org-blackfriday-quote-block) (radio-target .
org-blackfriday-radio-target) (special-block .
org-blackfriday-special-block) (src-block . org-blackfriday-src-block)
(strike-through . org-blackfriday-strike-through) (table-cell .
org-blackfriday-table-cell) (table-row . org-blackfriday-table-row)
(table . org-blackfriday-table) ...) :exported-data #<hash-table eq
5/4001 0x13a9641> :input-buffer "*Ox-hugo Pre-processed all-posts..."
:input-file "/home/runner/work/ox-hugo/ox-hug..." :with-toc nil
:section-numbers nil :author "" :creator "Emacs + Org mode + ox-hugo"
:with-smart-quotes nil :with-special-strings nil :with-sub-superscript
{} :hugo-with-locale nil :hugo-front-matter-format "toml"
:hugo-level-offset "1" ...))
  #f(compiled-function (keyword) #<bytecode
-0xd20fedbf377cdf9>)((keyword (:key "PRINT_BIBLIOGRAPHY" :value ""
:begin 201170 :end 201192 :post-blank 1 :post-affiliated 201170
:parent (section (:begin 201090 :end 201192 :contents-begin 201090
:contents-end 201192 :post-blank 1 :post-affiliated 201090 :parent
(headline (:raw-value "Printing Bibliography" :begin 201063 :end
201192 :pre-blank 0 :contents-begin 201090 :contents-end 201192 :level
4 :priority nil :tags nil :todo-keyword nil :todo-type nil :post-blank
1 :footnote-section-p nil :archivedp nil :commentedp nil
:post-affiliated 201063 :title (...) :parent (org-data nil ... ... ...
#33)) #17)) (paragraph (:begin 201090 :end 201109 :contents-begin
201090 :contents-end 201109 :post-blank 1 :post-affiliated 201090
:parent #17) #("Below Org snippet:\n" 0 19 (:parent #20))) (src-block
(:language "org" :switches nil :parameters nil :begin 201109 :end
201158 :number-lines nil :preserve-indent nil :retain-labels t
:use-labels t :label-fmt nil :value "#+print_bibliography:\n"
:post-blank 1 :post-affiliated 201109 :parent #17)) (paragraph (:begin
201158 :end 201170 :contents-begin 201158 :contents-end 201170
:post-blank 1 :post-affiliated 201158 :parent #17) #("exports to:\n" 0
12 (:parent #22))) #1))))
  #f(compiled-function (--data) #<bytecode
0x1f582865ffbfa61e>)((keyword (:key "PRINT_BIBLIOGRAPHY" :value ""
:begin 201170 :end 201192 :post-blank 1 :post-affiliated 201170
:parent (section (:begin 201090 :end 201192 :contents-begin 201090
:contents-end 201192 :post-blank 1 :post-affiliated 201090 :parent
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org-blackfriday-fixed-width) (footnote-reference .
org-blackfriday-footnote-reference) (inner-template .
org-blackfriday-inner-template) (italic . org-blackfriday-italic)
(item . org-blackfriday-item) (latex-environment .
org-blackfriday-latex-environment) (latex-fragment .
org-blackfriday-latex-fragment) (line-break . org-html-line-break)
(plain-list . org-blackfriday-plain-list) (plain-text .
org-blackfriday-plain-text) (quote-block .
org-blackfriday-quote-block) (radio-target .
org-blackfriday-radio-target) ...) :exported-data #<hash-table eq
5/4001 0x13a9641> :input-buffer "*Ox-hugo Pre-processed all..."
:input-file "/home/runner/work/ox-hugo/..." :with-toc nil
:section-numbers nil :author "" :creator "Emacs + Org mode + ox-hugo"
:with-smart-quotes nil :with-special-strings nil :with-sub-superscript
{} ...))
  org-cite-process-bibliography((:export-options (subtree) :back-end
#s(org-export-backend :name hugo :parent blackfriday :transcoders
((code . org-hugo-kbd-tags-maybe) (example-block .
org-hugo-example-block) (export-block . org-hugo-export-block)
(export-snippet . org-hugo-export-snippet) (headline .
org-hugo-heading) (inner-template . org-hugo-inner-template)
(inline-src-block . org-hugo-inline-src-block) (keyword .
org-hugo-keyword) (link . org-hugo-link) (paragraph .
org-hugo-paragraph) (src-block . org-hugo-src-block) (special-block .
org-hugo-special-block)) :options ((:with-toc nil "toc"
org-hugo-export-with-toc) (:section-numbers nil "num"
org-hugo-export-with-section-numbers) (:author "AUTHOR" nil
user-full-name newline) (:creator "CREATOR" nil
org-hugo-export-creator-string) (:with-smart-quotes nil "'" nil)
(:with-special-strings nil "-" nil) (:with-sub-superscript nil "^"
...) (:hugo-with-locale "HUGO_WITH_LOCALE" nil nil)
(:hugo-front-matter-format "HUGO_FRONT_MATTER_FORMAT" nil
org-hugo-front-matter-format) (:hugo-level-offset "HUGO_LEVEL_OFFSET"
nil "1") (:hugo-preserve-filling "HUGO_PRESERVE_FILLING" nil
org-hugo-preserve-filling) (:hugo-delete-trailing-ws
"HUGO_DELETE_TRAILING_WS" nil org-hugo-delete-trailing-ws)
(:hugo-section "HUGO_SECTION" nil org-hugo-section) (:hugo-bundle
"HUGO_BUNDLE" nil nil) (:hugo-base-dir "HUGO_BASE_DIR" nil
org-hugo-base-dir) (:hugo-goldmark "HUGO_GOLDMARK" nil
org-hugo-goldmark) (:hugo-code-fence "HUGO_CODE_FENCE" nil t)
(:hugo-use-code-for-kbd "HUGO_USE_CODE_FOR_KBD" nil
org-hugo-use-code-for-kbd) (:hugo-prefer-hyphen-in-tags
"HUGO_PREFER_HYPHEN_IN_TAGS" nil org-hugo-prefer-hyphen-in-tags)
(:hugo-allow-spaces-in-tags "HUGO_ALLOW_SPACES_IN_TAGS" nil
org-hugo-allow-spaces-in-tags) (:hugo-auto-set-lastmod
"HUGO_AUTO_SET_LASTMOD" nil org-hugo-auto-set-lastmod)
(:hugo-custom-front-matter "HUGO_CUSTOM_FRONT_MATTER" nil nil space)
(:hugo-blackfriday "HUGO_BLACKFRIDAY" nil nil space)
(:hugo-front-matter-key-replace "HUGO_FRONT_MATTER_KEY_REPLACE" nil
nil space) (:hugo-date-format "HUGO_DATE_FORMAT" nil
org-hugo-date-format) (:hugo-paired-shortcodes
"HUGO_PAIRED_SHORTCODES" nil org-hugo-paired-shortcodes space)
(:hugo-pandoc-citations "HUGO_PANDOC_CITATIONS" nil nil)
(:bibliography "BIBLIOGRAPHY" nil nil newline) (:html-container
"HTML_CONTAINER" nil org-hugo-container-element)
(:html-container-class "HTML_CONTAINER_CLASS" nil "") (:hugo-aliases
"HUGO_ALIASES" nil nil space) (:hugo-audio "HUGO_AUDIO" nil nil) ...)
:filters ((:filter-body . org-hugo-body-filter)) :blocks nil :menu (72
"Export to Hugo-compatible Markdo..." (... ... ... ... ... ...)))
:translate-alist ((code . org-hugo-kbd-tags-maybe) (example-block .
org-hugo-example-block) (export-block . org-hugo-export-block)
(export-snippet . org-hugo-export-snippet) (headline .
org-hugo-heading) (inner-template . org-hugo-inner-template)
(inline-src-block . org-hugo-inline-src-block) (keyword .
org-hugo-keyword) (link . org-hugo-link) (paragraph .
org-hugo-paragraph) (src-block . org-hugo-src-block) (special-block .
org-hugo-special-block) (center-block . org-blackfriday-center-block)
(example-block . org-blackfriday-example-block) (fixed-width .
org-blackfriday-fixed-width) (footnote-reference .
org-blackfriday-footnote-reference) (inner-template .
org-blackfriday-inner-template) (italic . org-blackfriday-italic)
(item . org-blackfriday-item) (latex-environment .
org-blackfriday-latex-environment) (latex-fragment .
org-blackfriday-latex-fragment) (line-break . org-html-line-break)
(plain-list . org-blackfriday-plain-list) (plain-text .
org-blackfriday-plain-text) (quote-block .
org-blackfriday-quote-block) (radio-target .
org-blackfriday-radio-target) (special-block .
org-blackfriday-special-block) (src-block . org-blackfriday-src-block)
(strike-through . org-blackfriday-strike-through) (table-cell .
org-blackfriday-table-cell) (table-row . org-blackfriday-table-row)
(table . org-blackfriday-table) ...) :exported-data #<hash-table eq
5/4001 0x13a9641> :input-buffer "*Ox-hugo Pre-processed all-posts..."
:input-file "/home/runner/work/ox-hugo/ox-hug..." :with-toc nil
:section-numbers nil :author "" :creator "Emacs + Org mode + ox-hugo"
:with-smart-quotes nil :with-special-strings nil :with-sub-superscript
{} :hugo-with-locale nil :hugo-front-matter-format "toml"
:hugo-level-offset "1" ...))
===

The ox-hugo CI is passing on emacs 26, 27, 28. Can someone using emacs
built from master branch confirm that they see this same error when
`org-cite-process-bibliography` is called? It should be reproducible
without using ox-hugo too.

Ref:
- https://github.com/kaushalmodi/ox-hugo/issues/630
- https://github.com/kaushalmodi/ox-hugo/runs/6352764912?check_suite_focus=true#step:5:597


Thanks!