[Bug 19547] New: The wineserver sometimes crashes after The Movies demo installer fails

http://bugs.winehq.org/show_bug.cgi?id=19547

Summary: The wineserver sometimes crashes after The Movies demo
                    installer fails
           Product: Wine
           Version: 1.1.26
          Platform: PC
               URL: http://www.lionhead.com/themovies/Downloads.aspx
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: wineserver
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Created an attachment (id=22767)
 --> (http://bugs.winehq.org/attachment.cgi?id=22767)
wineserver gdb backtrace

With wine-1.1.26-231-gfe9d360, after The Movies demo installer fails due to
unrelated issues in winemp3.acm, the wineserver will sometimes crash when the
installer exits, leaving the installer's WinZip extractor hanging. gdb shows:

Program terminated with signal 11, Segmentation fault.
[New process 7441]
#0  0x0808f0fb in redraw_window (win=0x9b3faf0, region=0x9b6bc20, frame=0,
flags=1157) at window.c:1302
1302            if (!(child->style & WS_VISIBLE)) continue;

I've attached the core backtrace from gdb.