Workspace switcher shortcuts stop working

[zzarko]

Shortcuts for workspace switcher, CTRL+ALT+Cursor, stop working in this situation:

1. Set the environment to use multiple workspaces (2x2 grid)
2. Make sure that you have one workspace with only one program, i.e. gedit, terminal, whatever
3. Switch to that workspace by any method
4. Close the program by any method
5. Try to switch to any workspace with CTRL+ALT+Cursor - they aren't working
6. If you click on the background, the keys start to work again

I guess that this is a situation where keyboard focus after closing the window is set to something else instead of unity.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.2.3+14.04.20140826-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
Uname: Linux 3.13.0-44-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CurrentDesktop: Unity
Date: Fri Dec 26 06:40:19 2014
InstallationDate: Installed on 2014-08-02 (145 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)