[Bug 27880] New: moving tool windows: mouse button state not correct?

http://bugs.winehq.org/show_bug.cgi?id=27880

Summary: moving tool windows: mouse button state not correct?
           Product: Wine
           Version: 1.3.24
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Created an attachment (id=35670)
 --> (http://bugs.winehq.org/attachment.cgi?id=35670)
steps to reproduce, moving tool window in SketchUp or in another application

Google SketchUp has some tool windows (windows without GTK title bar, but with
Windows title bar). After moving a tool window and releasing the left mouse
button, the tool window is placed correctly and stops moving. But when you
hover again some part of any of SketchUp's tool windows, SketchUp's previously
active tool window sticks to the cursor and moves (which is very annoying).

That bug seems partly not SketchUp-specific, but caused by the tool windows'
drag behavior: When you move a tool window of another application, then hover
over one of SketchUp, the previously active SketchUp tool window sticks to the
cursor (see attached image).
It appears that SketchUp recognizes the left mouse button still as "pressed"
although it isn't.