Acid impacting more than it should

## Testmerges
#13027: 'Add Multi-Z handling to get_line' by MistChristmas at commit 7dee321554
#12985: 'Extending the MD ping animation' by Yachuk at commit c1891db738
#11128: '[code beet] dissolver (used to be venator)' by cuberound at commit 7b738da461
#10925: 'Cape River Mining Colony - Ground Map' by Steelpoint at commit 15dd70a12a
#12947: 'Revert "Working multiz tacmap, round two, extra buttons"' by Rain7x at commit ea384007a4

## Round ID
36278

## Description of the bug
Acid will randomly impact everyone on the map, to the point of causing everyone to get the message of 'you feel acid burning your legs' and 'cries out in pain!' coming from everyone even if no acid is nearby. This may also be impacting barricades.

## What's the difference with what should have happened?
You should need burn damage in order for this to happen.

## How do we reproduce this bug?
Unknown, as of now.

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

## Additional details
- Author: Lagomorphica
- Admin: Lagomorphica
- Note: None

Start by reviewing the acid damage behavior described for round 36278 and try to reproduce the map-wide messages, since no reproduction steps, files, tests, or entry points are provided. Done means identifying why players or barricades are affected without nearby acid and confirming that only entities with burn damage trigger the effect.

Written by the indexing model from the issue text.