Bug#750011: gnome-tweak-tool: Windows Scaling Not Undoable

[Dean Chia]

Package: gnome-tweak-tool
Version: 3.12.0-2
Severity: normal

Dear Maintainer,

I went to Tweak Tool --> Windows --> Windows Scaling to see what it would do. I
pressed "+" and it made my window scaling from 1 to 2. Problem was, because
everything was scaled, I was unable to undo what I did and rescale it back to
1. My whole gnome session became practically unusable.

My cursor and desktop did not match up, and I was unable to move my windows. I
could not reach with my mouse the menu item to rescale the Windows, so it was
essentially stuck at a scale of 2. This applied both to Gnome and Gnome
Classic.

Luckily, I had XFCE to fallback to, and from there I opened gnome-tweak-tool to
rescale my windows back to 1. If all I had was gnome for my DE, then I would
have been in big trouble.

I'm not sure how one would fix this, as this is actually quite a serious "bug."

Would it be possible if you employed some kind of kill switch (like what you do
in Displays), where it would revert in 15-30 seconds to previous windows
scaling.



-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.14-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages gnome-tweak-tool depends on:
ii  gir1.2-gnomedesktop-3.0    3.8.4-2
ii  gir1.2-gtk-3.0             3.12.2-1
ii  gir1.2-notify-0.7          0.7.6-2
ii  gnome-shell-common         3.8.4-8.1
ii  gsettings-desktop-schemas  3.8.2-2
ii  python                     2.7.6-2
ii  python-gi                  3.12.1-1

gnome-tweak-tool recommends no packages.

gnome-tweak-tool suggests no packages.

-- no debconf information