bug#25887: 26.0.50; Exiting fullscreen

[Dani Moncayo <dmoncayo@gmail.com>]

I see this problem on Ubuntu GNOME[1], but not on MS-Windows[2].

Also, the problem disappears if I turn scroll-bar-mode off.

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Recipe from 'emacs -Q': <F11> <F11>

The Emacs frame should go fullscreen on the first command,
and go back to a normal (non-fullscreen) frame on the second
command.

Here, the second one does not seem to do anything at all (the frame
remains fullscreen). I have
to press <F11> a third time in order to exit fullscreen.


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Footnotes:

[1]
In GNU Emacs 26.0.50 (build 15, x86_64-pc-linux-gnu, GTK+ Version 3.20.9)
 of 2017-02-27 built on ubuntug1
Repository revision: 4daca38d5c673c5b6862e10cfade9559852cce12
Windowing system distributor 'The X.Org Foundation', version 11.0.11804000
System Description: Ubuntu 16.10


[2]
In GNU Emacs 26.0.50 (build 1, i686-pc-mingw32)
 of 2017-02-26 built on LEG570
Repository revision: 618310c22d8e26a1654e796b47cc2d248650de0d
Windowing system distributor 'Microsoft Corp.', version 10.0.14393

Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND NOTIFY ACL GNUTLS LIBXML2 ZLIB
TOOLKIT_SCROLL_BARS

Important settings:
value of $LANG: ENU
locale-coding-system: cp1252


--
Dani Moncayo