http://bugs.winehq.org/show_bug.cgi?id=35718
--- Comment #5 from Ken Thomases ken@codeweavers.com --- Created attachment 47758 --> http://bugs.winehq.org/attachment.cgi?id=47758 Patch to use existing client window if visual is the same
Does this help? It applies on top of attachment 47706 from bug 35705.