When Rif puts on the rat disguise, he is swapped out for a
different actor. When he takes off the disguise, after reaching
Sist's office, the old actor is swapped back in again.
At that point, original Rif's actor will have a _lastZone pointer
which not only is for the wrong room, it was deleted when Rif in
disguise left the room.
To fix this, we also swap the actors's _lastZone pointers.
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