[QScintilla] Drawing not white paper

[Andrei]

Hello again ;)

I have problem in the current snapshot (Not know, when it's appeared, I not 
updated QScintilla about one month)

If switched on brace matching and setted not white color for paper, when 
cursor moving near brace and it is highlighting, some peace of document (from 
line on which cursor was before to line, where cursor is now) are redrawing:  
it's filling with default system widget color, and then document paper and 
text is drawing. There is visible flicking.

This problem already existed and was fixed  (QScintilla Digest, Vol 14, Issue 
9  28/09/07 ), but now appeared again.  And now it's not stable (sometimes 
all are OK, and I can't represent it on test application)

Possible you will can fix it without test app, if you know, what changed last 
time.  If you can't - I can try to search stable representation of bug. 

Thanks, Andrei

p.s. Problem are on Monkey Developer Studio 
( svn://monkeystudio.org/monkeyrepos/v2/branches/dev )
repository accesible without authentification