Incorrect task switching when tasks set to appear on all desktops are present

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Set tint2 in single_desktop mode.
2. Have at least 2 desktops in your window manager.
3. In tint2, configure some mouse binding for next_task/prev_task.
4. Open several applications. Set the window of one of them to be visible on 
all desktops, leave the rest visible only on the current desktop.
5. Switch to another desktop.
6. Hover over a task in tint2's taskbar and use the mouse binding for 
next_task/prev_task.

What happens:
The windows from the other desktop start leaking to this desktop.

This happens in XFCE, not sure about other environments.

Fix in http://code.google.com/p/tint2/source/detail?r=651# please take a look 
and see if it is OK.

Original issue reported on code.google.com by mrovi%in...@gtempaccount.com on 14 Oct 2012 at 10:02

[GoogleCodeExporter]

Original comment by mrovi9...@gmail.com on 1 Feb 2015 at 10:36

• Changed state: Done

[GoogleCodeExporter]

Original comment by mrovi9...@gmail.com on 1 Feb 2015 at 5:49

• Changed state: Fixed