great discovery!
This could be a first step for setup out of bounds stuff. Johny look quite stuck there anyways xD. I'll try to look for more places where this works.
btw, I know that your character auto-stands up when is going backguards while crouching and the legs aproach a ledge (if you go foward, it performs a flip animation in the ledge). So maybe the explanation to this is that the clone man pushed your character legs out of bounds (so, into a 'ledge') making him auto-stand up.
I tried the glitch and couldn't find a way to get out of bounds.
effectively, The character auto-stands up in narrow places. I scan the whole area 1 and 2 for exploits, found nothing. I'll probably explore the other areas during the weekend to see if we have something promising.