[Bug 44181] New: Window with style WS_POPUP does not stay in front of his parent in unmanaged mode

https://bugs.winehq.org/show_bug.cgi?id=44181

Bug ID: 44181
           Summary: Window with style WS_POPUP does not stay in front of
                    his parent in unmanaged mode
           Product: Wine
           Version: 3.0-rc2
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: winex11.drv
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 59944
  --> https://bugs.winehq.org/attachment.cgi?id=59944
Test case

Windows with style WS_POPUP don't stay in front of their parent in unmanaged
mode ("Allow the window manager to control the windows" is disabled).
In managed mode everything works as expected.

The attachment "Test case" (https://pastebin.com/AbDih95E) illustrates the
issue.
The Test Popup should always stay in front of the Main window.
If I comment out the lines dlls/winex11.drv/event.c:581 and 582 (tag:
wine-3.0-rc2) the example works as expected.

Any hints on how I can fix this issue?

I tested wine 2.22, 3.0rc1, and 3.0rc2 (identical to git master).