Don't call P_ResetCamera when spawning a bot

P_ResetCamera calls P_MoveChaseCamera, which is supposed to make a player transparent if they're too close to the camera. This function originally wasn't called at all for bots, but uncapped introduced one instance in which it is, which caused bots spawning too close to the camera to stay transparent forever.

There's likely more weird stuff going on here, but for now this fix should suffice.

Fixes #971 (closed).