Description of problem:
It seems like all (or at least most) gtk2 applications have problems with mouse interaction with menus. 

Version-Release number of selected component (if applicable):
F21 Alpha

How reproducible:
always for geany (for both context menus and menu bar), sealert (has only context menu), libreoffice (both).
never for:firefox (gtk2), evolution (menus, mail list, calendar, …) , vlc, Konsole, nautilus
menu works, context menu doesn't for: gnome-terminal, roxterm (gtk3), evolution email view

Steps to Reproduce:
1. Open menu or context menu
2. try mouse interaction with menu

Actual results:
menu does not respond to mouse. Menu items don't get highlighted when hovering on them. Clicking on a menu item does not trigger any action but hides the menu. It seems like mouse position is incorrectly handled.

Expected results:
Menu items should get highlighted when hovering and actions should be triggered when clicking the menu.



Additional info:
This seems to be affect only gtk2 apps but not gtk3 or qt-based apps.