Description of problem:
If I install a guest under virt-manager and then delete it and install another
guest under the same name in virt-manager: the console for the new guest refuses
to appear.  Workaround is to quit virt-manager and start it again and voila.

How reproducible:
every time

Steps to Reproduce:
1. install a guest OS (call it "rawhide1")
2. later delete rawhide1 from virt-manager
3. try to reinstall "rawhide1" as a new guest
  
Actual results:
3. Press Finish in install setup does not bring up console window for rawhide1
 (I think it flashes up and then disappears.)  Pressing Finish again and a message
  appears saying it is already running.

Expected results:
3. new console to appear normally

Additional info:
It is annoying having to restart virt-manager for this.