Spawning on old exit points?

[rselias]

Twice now, choosing a rooftop spawn has teleported me to the middle of a field with no roof in sight. Both times, I had previously marked an exit point on the map at that location. I'm guessing it's counting the rooftop of the old exit building that no longer exists. Are old exits removed after you spawn, and before a check to place your character at ground level?