Drop the grabbed winch head when EVA boards a vessel.
Tweak the rover wheel EVA placement data to avoid clipping it into ground.
Fix solar panels taken out from containers.
Delete and re-create the StaticAttach objects when on/off rails.

Otherwise the kinematic rigidbody can end up in the wrong position.
Fix vessels being seriously messed up by unlinking pipe cycles.

Specifically, connect A to B, B to C, C to A, then unlink A-B or B-C.
The C to A connection tries to upgrade to docking while the undocking
is still in process, and breaks everything.