[O] Bug: org-babel-detangle broken [8.2.10 (release_8.2.10 @ /usr/local/Cellar/emacs/24.4/share/emacs/24.4/lisp/org/)]

[Jaakko Järvi]

The org-babel-detangle function is not working.
Below is a description of how the issue manifests.
(Thanks to Grant Rettke for crafting the detailed description).

1 Attempt
=========

1.1 Source input: ex1.org
─────────────────────────

 ┌────
 │ * Heading
 │
 │ #+BEGIN_SRC js :comments noweb :tangle yes :padline no
 │   function foo() {}
 │ #+END_SRC
 └────


1.2 Tangled output: ex1.js
──────────────────────────

 ┌────
 │ // [[file:~/tmp/ex1.org::*Heading][Heading:1]]
 │   function foo() {}
 │ // Heading:1 ends here
 └────


2 Comments & Questions
══════════════════════

 When I open the tangled output file, opened it in a buffer, put the
 cursor on line 2, and call `org-babel-detangle', the buffer switches
 to ex1.org, and then I get the message:

       Return to existing edit buffer ([n] will revert changes)?
       (y or n)

 Whether I choose yes or not, the current buffer always returns to
 ex1.js. Further, 
 any modifications made in file ex1.js are reverted back to the state
 of what existed after orgmode's export.
 

3 Environment
═════════════

 ┌────
 │ (print emacs-version)
 └────

 ┌────
 │ "24.4.1"
 └────

 ┌────
 │ (print org-version)
 └────

 ┌────
 │ "8.2.8"
 └────

 ┌────
 │ (print (pp-to-string org-babel-default-header-args))
 └────

 ┌────
 │ "((:session . \"none\")                                                      
                                
 │  (:results . \"replace\")                                                    
                                
 │  (:exports . \"code\")                                                       
                                
 │  (:cache . \"no\")                                                           
                                
 │  (:noweb . \"no\")                                                           
                                
 │  (:hlines . \"no\")                                                          
                                
 │  (:tangle . \"no\"))                                                         
                                
 │ "          
 └────
------------------------------------------------------------------------


Emacs  : GNU Emacs 24.4.1 (x86_64-apple-darwin14.0.0, NS apple-appkit-1343.14)
 of 2014-11-05 on somemachine
Package: Org-mode version 8.2.10 (release_8.2.10 @ 
/usr/local/Cellar/emacs/24.4/share/emacs/24.4/lisp/org/)

current state:
==============
(setq
 org-tab-first-hook '(org-hide-block-toggle-maybe 
org-src-native-tab-command-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-confirm-shell-link-function 'yes-or-no-p
 org-after-todo-state-change-hook '(org-clock-out-if-current)
 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 '((lambda nil
                  (org-add-hook (quote change-major-mode-hook) (quote 
org-show-block-all) (quote append)
                   (quote local))
                  )
                 (lambda nil
                  (org-add-hook (quote change-major-mode-hook) (quote 
org-babel-show-result-all)
                   (quote append) (quote local))
                  )
                 #[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)
 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-hide-inline-tasks
                  org-cycle-show-empty-lines 
org-optimize-window-after-visibility-change)
 org-confirm-elisp-link-function 'yes-or-no-p
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
 )