[Bug 57652] New: Some windows have cut bottom and right sides

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57652

Bug ID: 57652
           Summary: Some windows have cut bottom and right sides
           Product: Wine
           Version: 10.0-rc4
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Keywords: regression
          Severity: normal
          Priority: P2
         Component: winex11.drv
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail]
   Regression SHA1: b936f7426e33508538f48f7d20e7d7cb47cc1f32
      Distribution: ---

To reproduce:

1. Create a 64-bit prefix. (32-bit doesn't show the issue)
2. Enable a virtual desktop.
3. Run winecfg or uninstaller (taskmgr doesn't affected)