[Bug 20499] New: Bottom part is not visible in windows with custom-drawn title bar

http://bugs.winehq.org/show_bug.cgi?id=20499

Summary: Bottom part is not visible in windows with
                    custom-drawn title bar
           Product: Wine
           Version: 1.1.32
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Example: 2gis 3.0.x
(http://appdb.winehq.org/objectManager.php?sClass=version&iId=15077)
If I minimize window and then restore, all drawn fine.