almayer can crash beyond cordon on white antre, creating many strange /turf/closed/shuttle walls

## Testmerges
#11075: 'Ticket Panel (Adminhelps & Mentorhelps)' by GeneriedJenelle at commit 4ad8d0cf87
#11902: 'implement pii scrubbing for sentry' by hry-gh at commit 759efb7bd1
#12174: 'Yautja Armor Sets' by realforest2001 at commit 90c66798ed
#10414: 'Port: Harm Intent uses Auto-Fire instead of PB' by MistChristmas at commit d44502d495
#11161: 'Gas trap buff & neuro smoke tweaks' by Diegoflores31 at commit 92b29e6eb0
#12361: 'pride scarfs in loadout' by Detective-Google at commit 6ddcf88cb8
#12322: 'Fort McNeil - (Lowpop) Ground Map' by Steelpoint at commit ce3292659b
#9405: '[s][IDB IGNORE] Pathogen Confluence' by realforest2001 at commit 03276c86fd
#12140: 'Tyrargo Rift - Various Alterations' by Steelpoint at commit 13c4e6de58
#12159: 'MP Main's Brig Expansion' by antlersss at commit af4aec2748
#12434: 'Attempts to fix runaway explosion recursion' by Drulikar at commit 7389db8843
#12413: 'Revive undo changes to turf plane and plane ordering' by Drulikar at commit 31edad13a9

## Round ID
34777

## Description of the bug
title

## What's the difference with what should have happened?
should not be able to go beyond the bounds of the map, should doubly not be creating strange walls. players going beyond the cordon and into space through the gap it makes is also bad

## How do we reproduce this bug?
1) cause almayer crash
2) hope

## Attached logs
```
N/A
```

## Additional details
- Author: Vending Machine
- Admin: SmellyHippie
- Note: None