[O] Bug: babel results: output wrong location [7.8.09]

[Ista Zahn]

Remember to cover the basics, that is, what you expected to happen and
what in fact did happen.  You don't know how to make a good report?  See

     http://orgmode.org/manual/Feedback.html#Feedback

Your bug report will be posted to the Org-mode mailing list.
------------------------------------------------------------------------

What happens:

When I set <:results output> to an R babel block that does not output
anything, two equals signs are inserted at column one of the next
non-empty line after the second evaluation.

Reproducible example:

Start with this simpel org file:

-- begin org --

* Test babel block

#+name: test1
#+begin_src R :results output
  x <- 1
#+end_src

* Next heading

-- end org --

After placing the point inside the test1 block and pressing C-c C-c the
buffer looks like this:

-- begin org --


* Test babel block

#+name: test1
#+begin_src R :results output
  x <- 1
#+end_src

#+RESULTS: test1


* Next heading

-- end org --

So far so good. But when I press C-c C-c a second time, the buffer looks
like this

-- begin org --

* Test babel block

#+name: test1
#+begin_src R :results output
  x <- 1
#+end_src

#+RESULTS: test1


==* Next heading

-- end org --

Now "Next heading" is no longer a heading (notice the "==" inserted at
the beginning of the "* Next heading" line).

What I expected to happen:

The second evaulation of the code block
should produce the same output as the first. The == text should not be
inserted!

Emacs  : GNU Emacs 24.1.50.2 (x86_64-unknown-linux-gnu, GTK+ Version 3.2.3)
 of 2012-04-15 on arch-desktop
Package: Org-mode version 7.8.09

current state:
==============
(setq
 org-export-preprocess-before-selecting-backend-code-hook
'(org-beamer-select-beamer-code)
 org-tab-first-hook '(org-hide-block-toggle-maybe
org-src-native-tab-command-maybe org-babel-hide-result-toggle-maybe)
 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-export-preprocess-before-normalizing-links-hook
'(org-remove-file-link-modifiers)
 org-confirm-shell-link-function 'yes-or-no-p
 org-export-latex-final-hook '(org-beamer-amend-header
org-beamer-fix-toc org-beamer-auto-fragile-frames
org-beamer-place-default-actions-for-lists)
 org-export-latex-after-initial-vars-hook '(org-beamer-after-initial-vars)
 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 '(#[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-show-empty-lines
org-optimize-window-after-visibility-change)
 org-export-latex-format-toc-function 'org-export-latex-format-toc-default
 org-export-blocks '((src org-babel-exp-src-block nil) (export-comment
org-export-blocks-format-comment t) (ditaa
org-export-blocks-format-ditaa nil)
                     (dot org-export-blocks-format-dot nil))
 org-export-first-hook '(org-beamer-initialize-open-trackers)
 org-export-interblocks '((src org-babel-exp-non-block-elements))
 org-babel-tangle-lang-exts '(("python" . "py") ("perl" . "pl")
("latex" . "tex") ("emacs-lisp" . "el"))
 org-confirm-elisp-link-function 'yes-or-no-p
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-babel-load-languages '((emacs-lisp . t) (sh . t) (R . t) (js . t)
(latex . t) (octave . t) (ditaa . t) (org . t) (perl . t) (python . t)
(matlab . t))
 org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
 )