Windows that hide themselves when closed don't appear in any "this workspace" switcher

  affects ubuntu/compiz
  assignee smspillaz

When opening and closing a window just after starting Compiz, some windows end
up not appearing in any per-workspace switcher, including the Scale, Static
Application Switcher, and Ring Switcher.

1. Restart compiz.
2. Start Banshee
3. Activate "Toggle scale for current workspace/output", and notice that
Banshee's window is selectable here
4. Close its window (it doesn't quit because it stays in the Sound Menu)
5. Reopen Banshee's window via the Sound Menu or any other way
6. Repeat step #3, notice that this time, Banshee's window is gone.

The same goes for Liferea and Pidgin's buddy list windows. The common factor
here seems to be that the windows affected are windows that can be closed
(Alt+F4/press the "x") and reopened without the application quitting. This seems
to be a regression from a fairly recent change in git, as I haven't noticed this
issue before.

--
Kind regards,
Loong Jin