EVA Kerbal grabbing on hatch ladder imparts motion to craft that is very difficult to cancel/control #1
Description
This was after a :TURN_TO the capsule position and a :MOVE("forward") followed by :MOVE("stop"), then a :LADDER_GRAB, So it could be residual transferred force from the turning or the moving or both. The turning seems more easily missed as I don't see a way in the API to "stop" turning to a position. In this case the position passed in was a var locked to the capsule position so after grabbing the ladder the turning may have ended up like a dog chasing its tail. Or it could simply be realistic motion imparted when arriving at the hatch though it seemed quite slow.
Be that as it may, given the controls are rough, it would perhaps make sense to simply cancel all magical kos-eva kerbforces automatically at :LADDER_GRAB, and perhaps additionally have a suffix like :CANCEL(part_or_vessel) that would cancel relative velocity to the argument (not as in holding station actively, just a momentary cancelation) as it would just expose the required LADDER_GRAB fix more generally as a useful thing.
The auto force cancel at ladder grab seems like the no brainer low hanging fruit. The :CANCEL is just a a more general solution that could exposed for the user as a side effect of the required LADDER_GRAB cancelation code