Weird result when planting weed.

### Testmerges

not relevant

### Round ID

not relevant

### Description of the bug

weird result when planting weed on almayer
where it's blue wall should have weed on it but it doesn't.
red stuff shouldn't appear wrong layer?

### What's the difference with what should have happened?

weed should cover most stuff here it clearly shouldn't and isn't covering some walls for no apparent reason..?
probably some layer being wrong?

### How do we reproduce this bug?

1.spawn in as drone
2.plant weed
3.observe
...

### Issue Bingo

- [X] Issue could be reproduced at least once
- [X] Issue happened in a recent (less than 7 days ago) round
- [X] Couldn't find an existing issue about this (https://github.com/cmss13-devs/cmss13/issues)