Cross-grid joints do not wake their objects when grids move #6381
Description
Title! This is an issue we've faced while addressing reviews for space-wizards/space-station-14#42409.
We're currently unsure if it's specifically cross-grid joints attached to relays that're the issue, or if it's all cross-grid joints that're affected. But either way, this can lead to odd behavior like this:
grapplegridtele.mp4
When a grid moves, joints that affect objects outside of that grid remain asleep, which is a fairly noticeable bug in the physics simulation.
We've been able to resolve the bug through a hack that forces both objects to wake when they're both on different grids, but this is non-ideal for likely obvious reasons.