http://bugs.winehq.org/show_bug.cgi?id=14312
Reece Dunn msclrhd@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |FIXED
--- Comment #7 from Reece Dunn msclrhd@gmail.com 2010-05-28 12:53:30 --- This is fixed in current git -- likely as a result of "user32: Only skip redraws on MDI child unmaximize if the new child is maximized.".