Lisp code blocks fail

[tsd@tsdye.com (Thomas S. Dye)]

Aloha all,

With a recent pull, Lisp code blocks that I'm fairly certain were
working previously started to fail. There is a backtrace below. The Lisp
code executes correctly, but Babel doesn't appear to get the results in
the form it expects (if I'm reading the backtrace correctly).

Have I mucked up somehow?

Debugger entered--Lisp error: (wrong-type-argument listp "((\"t2\" \"b\"))")
  byte-code("\b\211A@)\207" [result x] 2)
  org-babel-execute:lisp("(unless (boundp '*cycle-graph*)\n    (defvar *cycle-graph*))\n(setq *cycle-graph* (populate (make-instance 'digraph)))\n(let ((r)\n      (flag))\n  (dolist (e edges r)\n    (add-edge *cycle-graph*\n              (list (read-from-string (first e))\n                    (read-from-string (second e))))\n    (when (and (not flag) (setf flag (cycles *cycle-graph*))) (push e r))))" ((:comments . "") (:shebang . "") (:cache . "no") (:padline . "") (:noweb . "yes") (:tangle . "no") (:exports . "code") (:results . "silent") (:var edges ("t1" "a") ("a" "t2") ("b" "t1") ("t2" "b")) (:colnames . "yes") (:hlines . "no") (:session . "none") (:result-type . value) (:result-params "silent") (:rowname-names) (:colname-names (edges "older" "younger"))))
  org-babel-execute-src-block(nil)
  org-babel-execute-src-block-maybe()
  org-babel-execute-maybe()
  org-babel-execute-safely-maybe()
  run-hook-with-args-until-success(org-babel-execute-safely-maybe)
  org-ctrl-c-ctrl-c(nil)
  ad-Orig-call-interactively(org-ctrl-c-ctrl-c nil nil)
  (with-no-warnings (ad-Orig-call-interactively function record-flag keys))
  (setq ad-return-value (with-no-warnings (ad-Orig-call-interactively function record-flag keys)))
  (let ((ido-ubiquitous-next-override (ido-ubiquitous-get-command-override function))) (setq ad-return-value (with-no-warnings (ad-Orig-call-interactively function record-flag keys))))
  (ido-ubiquitous-with-override (ido-ubiquitous-get-command-override function) (setq ad-return-value (with-no-warnings (ad-Orig-call-interactively function record-flag keys))))
  (let (ad-return-value) (ido-ubiquitous-with-override (ido-ubiquitous-get-command-override function) (setq ad-return-value (with-no-warnings (ad-Orig-call-interactively function record-flag keys)))) ad-return-value)
  call-interactively(org-ctrl-c-ctrl-c nil nil)

All the best,
Tom
-- 
T.S. Dye & Colleagues, Archaeologists
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