Comment 0 for bug 1509031

After upgrading to 15.10, I can no longer Alt-drag Firefox and Thunderbird windows above the top of the screen. When I attempt to do so, the window snaps downward along the y-axis so that the titlebar aligns with top of screen. Other applications such as gnome-terminal do not seem to be affected.

I ran git-bisect on metacity, and narrowed the regression down to this commit:

https://github.com/GNOME/metacity/commit/90b36abebdf69be0abaec4015d01e46296f6f5d6

commit 90b36abebdf69be0abaec4015d01e46296f6f5d6
Author: Alberts Muktupāvels <email address hidden>
Date: Fri Apr 3 23:30:20 2015 +0300

    window: add a meta_window_get_titlebar_rect

    Based on mutter commits:
    https://git.gnome.org/browse/mutter/commit/?id=3a0af0faaebb1af75925c70ad98e73c61e57639b
    https://git.gnome.org/browse/mutter/commit/?id=ac099343dab7b5048ce242958c454c55d1924902

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: metacity 1:3.17.2-4ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
CurrentDesktop: GNOME-Flashback:Unity
Date: Thu Oct 22 13:35:02 2015
InstallationDate: Installed on 2014-09-22 (394 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
SourcePackage: metacity
UpgradeStatus: Upgraded to wily on 2015-10-22 (0 days ago)