[Bug 43691] New: focus tracking broken with desktop switches

https://bugs.winehq.org/show_bug.cgi?id=43691

Bug ID: 43691
           Summary: focus tracking broken with desktop switches
           Product: Wine
           Version: 2.16
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: user32
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

When window manager is set to focus-follows-mouse (not sure if this bit is
important, but rest would be unclear without this bit) and winecfg sets it to
decorate/manage the windows, if I switch to a different window on the same
desktop (which makes most apps in question pause) then switch to a different
desktop, next switch back to the apps desktop, the app decides to act as if it
regained the focus and unpauses, even if it shouldn't, cause it's whole window
is covered by other windows. If more than one wine app is on that desktop, it
seems to be a random pick. What's more, some of the time it seems to be
receiving keyboard events, even if at the same time they go to a different
window.

("desktop" refers to manager's desktop not wine's virtual desktop window (which
isn't in use here))