I can't remember if powerfold mirrors won't fold when you try to manually push them / they have resistance?
As the car I went to see, it looked like someone replaces passenger side with a non-powerfold mirror, if I remember right that one would just fold with hardly any force, but powerfold one didn't (this was 4 years ago mind you lol).
Or it could be someone changed the switch from a powerfold car if their switch was faulty?