GNU bug report logs - #19059
[FIX INCLUDED] desktop-read re-enables desktop autosave when it shouldn't

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Kelly Dean <kelly <at> prtime.org>
To: bug-gnu-emacs <at> gnu.org
Subject: [FIX INCLUDED] desktop-read re-enables desktop autosave when it
 shouldn't
Date: Sat, 15 Nov 2014 06:57:15 +0000

With emacs 24.4, run emacs -Q, then do
(desktop-save-mode 1)
Notice that window-configuration-change-hook now (correctly) contains desktop-auto-save-set-timer, since desktop-save-mode defaults to enabling desktop autosave. Now do
(desktop-auto-save-disable)
Notice that desktop-auto-save-set-timer is (correctly) removed from the hook. Now do
(desktop-save "~/.emacs.d")
(desktop-read)
Notice that desktop-auto-save-set-timer is added back to the hook, which is a bug since you didn't ask for desktop autosave to be re-enabled.

This bug wasn't in 24.3, because 24.3 didn't have the desktop autosave feature.

The bug is in desktop.el of the 24.4 release, line 1191, which unconditionally calls desktop-auto-save-enable. The fix is to change that to conditionally call desktop-auto-save-enable, if desktop autosave was enabled (indicated by presence of desktop-auto-save-set-timer in the hook) prior to being disabled by the call to desktop-auto-save-disable on line 1138. Patch excluded, per request.

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