I think the intended behavior is that if there are objects in the room (and they’re not all showing their FDESC description), the Fantasize spell may add a fake object to the end of the list. It’s a really annoying thing to test (without modifying the code), because you can go for hundreds of moves - or longer - without the Wizard even using that spell on you. And even when he does there’s still only a random chance that you will trigger the effect before it wears off