I see this quite a bit:
From the starting position with A on top, B is working towards an escape and A maintains a single leg. They end up facing each other with A still maintaining the single leg and B sprawled on top with a front headlock, head chancellor or similar hold. A releases the leg and is on his hands and knees with the only contact between the wrestlers being the hold the defensive wrestler has. It seems like some referees will award an escape at this time and a subsequent takedown if B is able to work around behind, and some wait and award a reversal when B comes behind or an escape when they completely separate.
