Modal dialogs do not receive focus when opened

[Leif Arne Storset]

To reproduce with 2:7.3.547-6ubuntu5 on Ubuntu GNOME 13.04:

1. Open a file in GVIM.
2. Edit the file in another program.
3. Switch back to GVIM using one of
    * Alt-Tab switcher
    * Clicking on GVIM's title bar (not the client area)
    * The "Activities" switcher
    A modal dialog pops up saying 'W11: Warning: File "test" has changed since editing started'.

Expected: The modal dialog is focused, so that I can immediately dismiss it by pressing Enter or reload the file by pressing L.

Actual: The modal dialog is not focused. Keyboard input appears to be ignored.

Workaround: Switch away from GVIM and then back. (For instance, Alt+Tab twice.) The dialog receives focus. (You could also click using your mouse if you have time for such things.)

[Leif Arne Storset (lastorset)]

I can reproduce in the bare Vim source tree and reported it as https://code.google.com/p/vim/issues/detail?id=172. Sorry if this report was redundant!