Further information:
You will need virt-manager installed to replicate this.
I am also noting similar (though not *exactly* the same) behaviour in vinagre. If I press the Super key when connected to a vnc session, the key press is registered, however, if I then click on any application on my second desktop, and click on an application on my first desktop, the menu pops up again. Again, this is not something that was ever a problem before unity became my desktop.
Further information:
You will need virt-manager installed to replicate this.
I am also noting similar (though not *exactly* the same) behaviour in vinagre. If I press the Super key when connected to a vnc session, the key press is registered, however, if I then click on any application on my second desktop, and click on an application on my first desktop, the menu pops up again. Again, this is not something that was ever a problem before unity became my desktop.