Playing JSW2, I'm walking left or right by holding down the “O” or “P” buttons. Command-B to bookmark, later command-Z to revert. Sometimes after the revert, and I can’t quite pin down when, the machine now walks for me automatically, as if it is holding down the button pressed at the time of the bookmark. Mighty inconvenient if it happens before a jump that needs to be pixel-perfect. Please could this stop happening.