Using the auto move window the overview is not shown when the last
window on the last workspace is closed, instead the workspace before is
activated. This differs from the core gnome-shell's behaviour. Fix the
extension to show the ovreview instead of changing workspace when the
last window is closed on the last workspace. The fix is basically merged
from gnome-shell master.
Summarizing, the behaviour is now:
- The last window is closed on any workspace but the last: do nothing
- The last window is closed on the last workspace: show the overview
instead of switching to the "upper" workspace
https://bugzilla.gnome.org/show_bug.cgi?id=651586
Alessandro Crismani
9a8704203b