Can't build cades next to raised rock corners.

## Testmerges
#8365: 'Hellhound rework and re-sprite' by Red-byte3D at commit e86c248936
#8292: 'Update to Lower Medbay - Complete redesign' by LC4492 at commit f72d2a9595
#8442: 'Removes devour, replaces it with haul. #2737 Revival' by casperr04 at commit fd00048dd6
#7645: 'adds poll subsystem, entities and ui' by hry-gh at commit ddd2f66fd9
#8470: 'faster cellauto explosions' by jupyterkat at commit 5122245dd1
#8378: 'Yautja Ship - Complete Remake & more...' by Zenith00000 at commit 9fac4b5efb
#7895: 'MRE Big Content Update: Cornbread Edition' by Blundir at commit da6a5177a7
#8554: 'Fixes Queen expand weeds from expanding into unweedable tiles' by Git-Nivrak at commit 4da9957571

## Round ID
26538

## Description of the bug
You can't build cades adjacent to raised rock corners that are added 360* around a rock wall structure for aesthetic look.

## What's the difference with what should have happened?
Should be built.

## How do we reproduce this bug?
1) Try build adjacent to a raised rock edge around the rock walls in Kutjevo Refinery
2) There is already a raised rock corner in this direction!

## Attached logs
```
There is already a raised rock corner in this direction!
```

## Additional details
- Author: AnonHault
- Admin: NessiePendragon
- Note: None