Extra 4th position on kickstand.

saw it in a video. some1 was bashing the surface form top and the kickstand flipped out of the ankle. but it could be easily put back in the normal 3 positions
 
Yes, that is the break away feature, meant to be a safeguard if you put too much pressure on the surface in it's 3rd position. It's like a dislocated shoulder that needs to be popped back in. I wouldn't generally suggest to do that as it's like Gorilla glass, you test it out, but it can still be broken by being stupid.