Painting completely broken in wxUniv/X11

[Vadim Zeitlin]

Hello,

I wanted to fix a small bug in wxUniv wxListbox reported by Manolo
recently but when I built wxX11 to test my fix I discovered that somehow
painting in it got completely broken, almost nothing is repainted correctly
now. Combo boxes show some junk around the main text part, their drop downs
don't appear correctly, nothing is repainted correctly after the resize and
so it's basically completely unusable.

I don't know if anybody is still interested in wxX11 but if anybody is, it
would be great to find when exactly did this happen by bisecting because it
definitely wasn't that bad before, even relatively recently.

Thanks in advance for any findings,
VZ