Comment 6 for bug 199380

I think i can also reproduce this crash.

It's have to do with the new tooltip.
My way to reproduce it is :

1. enable compiz
2. move the mouse over the workspace switcher
3. as soon as the tooltip appears, click on a workspace (different than your current one, of course)
4. repeat with different delay until it crash

The tooltip is created by libwnck22.
If i rebuild this package without the patch that add this tooltip (02_expose_wm_keybindings.patch)
it don't crash anymore.