[Bug 26503] New: modal windows don't stay on top

http://bugs.winehq.org/show_bug.cgi?id=26503

Summary: modal windows don't stay on top
           Product: Wine
           Version: 1.3.15
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Created an attachment (id=33743)
 --> (http://bugs.winehq.org/attachment.cgi?id=33743)
Simple delphi program + source.

Under MS Windows these modal windows can be placed anywhere on the screen,
clicking the main window doesn't hide them. Not so under Wine: clicking the
main window puts it on top hiding the modal windows.

Ubuntu 10.04
Wine version 1.3.15

Demo from Khmelevskiy Alexandr is attached.
Open "bug21039.exe" then press "MessageBox" button.
Press main windows.
Messagebox goes behind main window an application hangup.