Bug: org-export-babel-evaluate causes everything to be exported [8.3.4 (release_8.3.4-824-ga02fe8)]

[Ken Mankoff <mankoff@gmail.com>]

I've noticed that code and results are all getting exported in the
latest Org mode git head. This is new  behavior. I haven't traced
it to what commit caused this change, but the stock 8.2.10 install does
not have this bug.

The offending setting is:

(setq org-export-babel-evaluate nil)

My full state is attached below, but I'm recreating the bug with a
simpler setup:

I'm running a clean Emacs with:

~/local/Applications/Emacs.app/Contents/MacOS/Emacs -Q ~/.emacs.d/simple.el

where the contents of "simple.el" are only:

;;------------------------------------------------
(add-to-list 'load-path "~/local/src/org-mode/lisp")
(add-to-list 'load-path "~/local/src/org-mode/contrib" t)
(require 'org)
(setq org-export-babel-evaluate nil)
(org-babel-do-load-languages
 'org-babel-load-languages
 '((emacs-lisp . t)   
   (octave . t)))
;;------------------------------------------------

If I evaluate the first 3 lines, I load the latest git head. If I do
not, I run Org 8.2.10. If I evaluate the 4th line, "(setq
org-export-babel-evaluate nil)", the bug does not appear in 8.2.10, but
does appear in git head.

I test it with the following file:

;;------------------------------------------------
#+BEGIN_SRC octave :exports results
"hello, world"
#+END_SRC
#+RESULTS:
: hello, world
;;------------------------------------------------


Which I then export to LaTeX. In Org 8.2.10 w/ or w/o
"org-export-babel-evaluate", I only see results. In git head, I see the
code and the results if it is set to 'nil'.


    -k.



Emacs  : GNU Emacs 24.5.1 (x86_64-apple-darwin14.5.0, Carbon Version 157 AppKit 1348.17)
 of 2015-12-15 on bos-mp6ry
Package: Org-mode version 8.3.4 (release_8.3.4-824-ga02fe8 @ /Users/mankoff/local/src/org-mode/lisp/)

current state:
==============
(setq
 org-export-babel-evaluate nil
 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 '(closure
				   (htmlize-buffer-places
				    org-html-format-table-no-css
				    htmlize-css-name-prefix
				    htmlize-output-type htmlize-output-type
				    htmlize-css-name-prefix t)
				   (_name contents) contents)
 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-format-headline-function 'org-latex-format-headline-default-function
 org-after-todo-state-change-hook '(org-clock-out-if-current)
 org-latex-format-drawer-function '(closure (t) (_ contents) contents)
 org-odt-format-headline-function 'org-odt-format-headline-default-function
 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 '((closure
		  (org-inlinetask-min-level buffer-face-mode-face org-mode-map
		   org-tbl-menu org-org-menu org-struct-menu org-entities
		   org-last-state org-id-track-globally org-clock-start-time
		   texmathp-why remember-data-file
		   org-agenda-tags-todo-honor-ignore-options
		   iswitchb-temp-buflist calc-embedded-open-mode
		   calc-embedded-open-formula calc-embedded-close-formula
		   align-mode-rules-list zmacs-regions outline-mode-menu-hide
		   outline-mode-menu-show outline-mode-menu-heading
		   org-emphasis-alist org-emphasis-regexp-components
		   org-export-registered-backends org-modules
		   org-babel-load-languages t)
		  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))
		  )
		 org-babel-result-hide-spec org-babel-hide-all-hashes)
 org-archive-hook '(org-attach-archive-delete-maybe)
 org-ascii-format-drawer-function '(closure (t) (_name contents _width)
				    contents)
 org-odt-format-inlinetask-function 'org-odt-format-inlinetask-default-function
 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-confirm-elisp-link-function 'yes-or-no-p
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-odt-format-drawer-function '(closure
				  (hfy-user-sheet-assoc hfy-optimizations
				   hfy-html-quote-regex hfy-html-quote-map
				   hfy-face-to-css hfy-begin-span-handler
				   hfy-end-span-handler archive-zip-extract
				   nxml-auto-insert-xml-declaration-flag t)
				  (_name contents) contents)
 org-html-format-headline-function 'org-html-format-headline-default-function
 org-babel-load-languages '((emacs-lisp . t) (octave . t))
 org-html-format-inlinetask-function 'org-html-format-inlinetask-default-function
 org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
 )