[Bug 12857] New: Guitar Pro 5 window jumps by the size of the window decoration

http://bugs.winehq.org/show_bug.cgi?id=12857

Summary: Guitar Pro 5 window jumps by the size of the window
                    decoration
           Product: Wine
           Version: 0.9.60
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: P2
         Component: winex11.drv
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

When I open Guitar Pro 5, the main window is initially displayed in the upper
left corner of the screen, but then immediately jumps a little downward and to
the right. The distance seems to be exactly the width/height of the window
decoration. The window then keeps jumping further down/right by the same amount
every time I open a new file, hit play/stop, and on a few other occasions.

I'm using xfwm4. This problem seems to have been introduced by some change in
0.9.59, I can't reproduce it with 0.9.58.