TacMap showing blank + Map Ceiling mode keeps toggling by itself again

## Testmerges
#12627: 'Tyrargo Rift (2) - Various Alterations' by Steelpoint at commit 73b8f408b2
#12824: 'Bundles Wound Overlay Updates' by fira at commit 6b48f2d5f1
#12895: 'Research rework - Xenobiology edition' by Watermelon914 at commit ae37ca06bd
#12537: 'Atlan Station - Groundmap' by oceany-a11y at commit 24fb19ec1b
#12721: 'Assorted Sound Fixes' by fira at commit 8b5bf0b649
#12793: 'Explosion Waves: Visual update and Backend rewrite' by fira at commit e7bd8a72c5

## Round ID
35827

## Description of the bug
CAS protection layer keeps getting re-enabled without any input on my side other than opening the map. It was a bug a while ago, that was eventually solved, but now it's reappeared

## What's the difference with what should have happened?
Overlay shouldn't toggle on without me toggling it on.

## How do we reproduce this bug?
0?) Join live server? (maybe doesn't bug out on local)
1) Open map.
2) There is CAS protection layer.
3) Disable the layer (need to click it twice because the game thinks you have no layer on).
4) Re-open map again.
5) There is CAS protection layer again.

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

## Additional details
- Author: Ihatethisengine2
- Admin: KiVts
- Note: None

Reproduce this on the live server using round 35827's steps: open the map, disable the CAS protection layer, and reopen the map. Compare the layer's state after reopening and determine why it is enabled again without input; done means the overlay stays disabled until explicitly toggled.

Written by the indexing model from the issue text.