Bug: org -> org export ignores latex blocks [8.3.4 (8.3.4-50-g83e373-elpaplus @ /home/andrea/.emacs.d/elpa/org-plus-contrib-20160509/)]

[Andrea <agiugliano91@gmail.com>]

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------------------------------------------------------------------------

Hello,

I am a great fan of org mode, so thanks a lot for maintaining this wonder!

The problem:

when I try to export an org file to an org buffer/file, LaTex blocks are
removed:

the org file
---------------
* Hello
#+BEGIN_LaTeX
hi I am latex
#+END_LaTeX
---------------
becomes
---------------
# Created 2016-05-12 Thu 17:45
#+TITLE: 
#+AUTHOR: Andrea
* Hello
---------------

The export to html deletes these blocks as well.
Packages as ox-pandoc and org-pandoc use this functionality,
and so fail the export as well.
Hope this can be solved easily.
Thanks,

Andrea

Emacs  : GNU Emacs 24.5.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.20.3)
 of 2016-05-05 on arojas
Package: Org-mode version 8.3.4 (8.3.4-50-g83e373-elpaplus @ /home/andrea/.emacs.d/elpa/org-plus-contrib-20160509/)

current state:
==============
(setq
 org-pandoc-epub-rights "Copyright 2016  <>"
 org-tab-first-hook '(org-hide-block-toggle-maybe org-babel-hide-result-toggle-maybe org-babel-header-arg-expand)
 org-speed-command-hook '(org-speed-command-default-hook org-babel-speed-command-hook)
 org-occur-hook '(org-first-headline-recenter)
 org-metaup-hook '(org-babel-load-in-session-maybe)
 org-html-format-drawer-function '(lambda (name contents) contents)
 org-log-done t
 org-latex-format-inlinetask-function 'org-latex-format-inlinetask-default-function
 org-confirm-shell-link-function 'yes-or-no-p
 org-ascii-format-inlinetask-function 'org-ascii-format-inlinetask-default
 org-latex-pdf-process '("texi2dvi -p -b -V %f")
 org-latex-format-headline-function 'org-latex-format-headline-default-function
 org-default-notes-file "~/org/notes.org"
 org-after-todo-state-change-hook '(org-clock-out-if-current)
 org-latex-format-drawer-function '(lambda (name contents) contents)
 org-from-is-user-regexp nil
 org-loop-over-headlines-in-active-region 'start-level
 org-src-mode-hook '(org-src-babel-configure-edit-buffer org-src-mode-configure-edit-buffer)
 org-agenda-before-write-hook '(org-agenda-add-entry-text)
 org-babel-pre-tangle-hook '(save-buffer)
 org-mode-hook '(#[nil "\300\301\302\303\304$\207" [org-add-hook change-major-mode-hook org-show-block-all append local] 5]
                 #[nil "\300\301\302\303\304$\207" [org-add-hook change-major-mode-hook org-babel-show-result-all append local]
                   5]
                 org-babel-result-hide-spec org-babel-hide-all-hashes turn-on-flyspell org-eldoc-load)
 org-archive-hook '(org-attach-archive-delete-maybe)
 org-ascii-format-drawer-function '(lambda (name contents width) contents)
 org-ctrl-c-ctrl-c-hook '(org-babel-hash-at-point org-babel-execute-safely-maybe)
 org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-hide-drawers org-cycle-show-empty-lines
                  org-optimize-window-after-visibility-change)
 org-plantuml-jar-path "/home/andrea/.emacs.d/plantuml.jar"
 org-babel-tangle-lang-exts '(("haskell" . "hs") ("ruby" . "rb") ("python" . "py") ("java" . "java") ("ocaml" . "ml")
                              ("emacs-lisp" . "el") ("elisp" . "el"))
 org-confirm-elisp-link-function 'yes-or-no-p
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-html-format-headline-function 'org-html-format-headline-default-function
 org-babel-load-languages '((ocaml . t) (java . t) (sh . t) (python . t) (ruby . t) (haskell . t) (plantuml . t))
 org-html-format-inlinetask-function 'org-html-format-inlinetask-default-function
 org-agenda-files '("~/myTasks.org")
 org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
 )