Shutdown and restart dialog window's cancel function broken

[ileppala]

On ubuntu 14.04 LTS, if you have gnome-session-flashback installed and your window manager is either gnome-flashback-metacity or gnome-flashback-compiz the shut down dialog is broken.

If you choose to shut down or restart your computer from the top-right menu, and then from the next dialog window click Cancel, the computer will still shutdown or restart itself.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gnome-session-flashback 1:3.8.0-1ubuntu12.2
ProcVersionSignature: Ubuntu 3.16.0-30.40~14.04.1-generic 3.16.7-ckt3
Uname: Linux 3.16.0-30-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Feb 24 03:07:40 2015
GsettingsChanges:

InstallationDate: Installed on 2015-02-23 (0 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
PackageArchitecture: all
SourcePackage: gnome-panel
UpgradeStatus: No upgrade log present (probably fresh install)

[Dmitry Shachnev (mitya57)]

This is a known bug in indicator-session, fixed in 14.10.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Thomas Mayer (thomas303)]

I can reproduce this bug using gnome-flashback-compiz on ubuntu 14.04.2, kernel 3.16.0-31 (latest hwe)