[BUG] Wheatley does not come out of his rail properly.

[Jordon87]

In the maps, sp_a1_intro7 and sp_a2_core, there are certain moments where the Wheatley entity "npc_personality_core" would use the ClearParent input to come off it's rail. However, Wheatley would disappear from the map and would go in random places. The only way to get Wheatley back on the map is to used the console and teleport him back to the room. We'll need to fix this at some point.