Comment 0 for bug 1181367

Due to an overflow, after some time of activity it's impossible to alt+tab between two windows of the same application.

1) Keep two windows of an app (say terminal) opened for some time, and another
   window of a different app
2) Focus one window terminal keeping the other terminal window below it
3) Press Alt+Tab

Expected behavior
4) The other terminal window is focused

Actual behavior:
4) Other opened application is selected instead.