how do I go about diagnosing a windowing problem that only happens under gnome shell?

[drago01]

On Fri, Feb 1, 2013 at 10:38 PM, Matthew Miller
<mattdm at fedoraproject.org> wrote:
> On Fri, Feb 01, 2013 at 09:41:02PM +0100, drago01 wrote:
>> > How do I go about finding what's to blame and fixing it?
>> Is this an override redirect window? Or how does it fullscreen itself?
>> If it is the former does Alt-f2 "lg" and then
>>  Meta.disable_unredirect_for_screen(global.screen);
>> make it work?
>
> Okay, yes -- and that works. What next? :)

Please file a bug upstream (with instructions to reproduce) and I will
take a look.