I can't figure out what to do when the player rewinds after jumping.

The rewind automatically stops at the frame which contains the jump action, but due to acceleration they might fall to their deaths immediately after, if they jumped from the very edge of a cliff.

I could rewind a few extra frames, but that introduces more complexity and might not apply when multiple actions are performed in a short time.

I'll probably have to find some compromise and also increase friction.