[Bug 37721] New: Notepad2 sometimes does not properly switch out of Transparent mode

https://bugs.winehq.org/show_bug.cgi?id=37721

Bug ID: 37721
           Summary: Notepad2 sometimes does not properly switch out of
                    Transparent mode
           Product: Wine
           Version: unspecified
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 50216
  --> https://bugs.winehq.org/attachment.cgi?id=50216
Screenshot of the display problem.

The 64-bit of Notepad2 from
http://www.flos-freeware.ch/zip/notepad2_4.2.25_x86.zip has a display problem
on Wine 1.7.33. Steps to produce bug:
1) Create a window that is maximized.
2) Change view to transparent
3) Reduce the size of window and move it
4) Change view back to opaque from transparent

At this point, many of the icons on the toolbar are completely blacked out as
shown in the attached screenshot.