[Bug 10442] New: Cannot switch back to Half Life 2 after alt-tabbing with managed windows

http://bugs.winehq.org/show_bug.cgi?id=10442

Summary: Cannot switch back to Half Life 2 after alt-tabbing with
                    managed windows
           Product: Wine
           Version: 0.9.49.
          Platform: Other
        OS/Version: other
            Status: NEW
          Severity: normal
          Priority: P2
         Component: wine-x11driver
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

When running in full screen mode and using managed windows, if I alt-tab away
from Half Life 2 (or some other window steals focus), then I have no way to
return.  I can still hear the sounds playing and the game appears to be running
as normal, however there is no Half Life 2 in my taskbar or alt-tab programs. 
The steam windows appear to be functioning normally, and I can return to them.

I'm a bit perplexed, as I can't even figure out a workaround at this point
other than wineserver -k