Coffins grabbed by grabbers are deleted / teleported to other grabebrs

[MonkestationIssueBot]

Reporting client info: Client Information:
BYOND:515.1639
Key:theawful

Round ID:

7993

Testmerges:

• Ports some reserved turf fixes from upstream
• [DRAFT] Cult Revamp
• [DNM] Aneri except I redid the branch again
• Glide size is now determined by cpu usage.
• Its cogging time(again)
• Sect of the hunt
• some more basic 516 prep
• Artifact Panel update
• Further player height fixes and improvements
• Center-aligned lobby screen fixing.
• Space Ruins Improvements P1
• Do Not Revive
• Removes the chicken in the AI sat of theseus station.
• Deepstorage bunker remaster (somewhat)
• Making the hotel ruin, an actual hotel
• Moves IPC limbs from under robot
• [PORT] Converts the slot machine over to TGUI
• [DNM] some more fixes

Reproduction:

Set up coffin creation and loading mechanism in cargo, coffins loaded onto shuttle, and imidiately vanish. Hop in coffin, placed on shuttle, vanish and am imidiately teleported to cargo unloader grabber