I was running this version of the game recently when all of a sudden I got stuck in the door. What's strange about this, is that I floated upwards slowly without my control and I couldn't get out of this state at all.

I did manage to replicate it but I don't know what condition are needed for this to happen. I guess you need to jump in a specific way as the game is loading? I need more eyes on this glitch so we can figure out if this does have any use.

I'll update this post if I find something new with it.