I still do not know how that bedroom door works, but it sure made me lose runs for being unlocked most of the time.

Mod Note: Retimed (Start Frame: 61953, End Frame: 65359, FPS: 30, Total Time: 1:53.567)

So basically if you line up your cursor to the bedroom door while you're in the bathroom door while it's open, it will lock both the bathroom door and the bedroom door.