You can build two clusters on the same tile

## Testmerges
#9894: 'Multiz indicator' by Detective-Google at commit 5dbc10a0d2
#7093: 'creates ipcheck subsystem' by hry-gh at commit 2a3e40559b
#9872: 'Multiz Bigred [MDB IGNORE]' by spartanbobby at commit bb10124ab1
#10529: 'Revert "Allows Queen Eye to look into tents (#10494)"' by realforest2001 at commit a70e338b85
#10465: 'New xenomorph boon (boost structures)' by Red-byte3D at commit 8d2f6fa829
#10567: 'Queen temporary maturity tweaks & Misc evolution tweaks' by Drulikar at commit abb17d3a5c
#10376: 'CIA Overhaul' by realforest2001 at commit 7c1a82d3c9
#10375: 'Corporate Bodyguard' by realforest2001 at commit 67abd0d05e

## Round ID
30003

## Description of the bug
Me and hivelord built two hive clusters on the same tile. Maybe this would work with stacking other structures too. (Like stacking healing nodes)

## What's the difference with what should have happened?
You're only meant to have one cluster each tile.

## How do we reproduce this bug?
I believe what happened, is that we tried building a construction node at the same tile at same or similar times? It was on the alamo if it matters.

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

## Additional details
- Author: HONKERhonker
- Admin: SmellyHippie
- Note: None