Marines Can Build Walls on Tunnels

[stagda]

Testmerges

BYOND Version: 515.1610 Server revision compiled on: 2023-07-27T21:09:09+00:00 Master commit: 6314aef The following pull requests are currently test merged: #3962: 'Drastic Changes to the USS Almayer research department' by spartanbobby at commit e28eab7 #3917: 'Sweeping LV522 Changes + FORECON GL replaced by FORECON Sniper (Without the sniper)' by spartanbobby at commit 6b52cf3 #3985: 'Xeno endgame content part 1: pylons and larva' by morrowwolf at commit 5d8a9ed #4003: 'Brings automatic weaponry to the marine and surv arsenal' by Zonespace27 at commit e11e2a7 #4021: '2.5 squad marines per 1 larva latejoin' by morrowwolf at commit 524c08b

Description of the bug

Walls can be built on top of tunnels, blocking them off (and can trap bald xenos who dont know to right click to exit or alt click the tile to re-enter.)

What's the difference with what should have happened?

Tiles around the tunnel should be able to be walled off but not the tile with the tunnel on it.

How do we reproduce this bug?

...

Issue Bingo

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

[Huffie56]

#4831
this PR fixed it.
to be more precise you no longer can secure girder on tunnels...
and so no walls can be build on it.