Stairs Teleporting to the wrong place in Augmentation Clinic

[LordMadness]

Describe the bug

Going upstairs in the Augmentation Clinic through the non-entrance stairs teleports you to the front stairs if the correct one on the other z-level is destroyed.

Steps To Reproduce

1. Somehow destroy the ceiling where the correct stairs would be (Jackhammer, Pickaxe, etc) on the other z-level.
2. Climb the stairs on your Z-Level.

Expected behavior

Failing to climb, or getting a prompt about the risk.

Screenshots

Versions and configuration

• OS: Windows
  • OS Version: 10.0 1909
• Game Version: 0.E-7200-gfc2388e [64-bit]
• Graphics Version: Tiles
• Game Language: English [en]
• Mods loaded: [
  Dark Days Ahead [dda],
  Graphical Overmap [Graphical_Overmap],
  Disable NPC Needs [no_npc_food],
  Bionic Professions [package_bionic_professions],
  Aftershock [aftershock],
  Aftershock - UndeadPeople Tileset [AftershockUDP],
  Stats Through Kills [stats_through_kills]
  ]

[ZhilkinSerg]

That is not unique to specific mapgen

[robotic-gamer]

I think the main issue is that stairs being able to teleport you horizontally is still in the game because a bunch of old building patterns rely on it to work (caves, lmoe shelters, stairs down to labs etc). ultimately they need to be redesigned or removed to fix this properly. A related bug is how there is a spot in most caves lit by daylight. My working theory is the lit spot corresponds to the stair tile on the surface.

Lastly I think the Aftershock label is erroneous because the underling issue has nothing to do with Aftershock.

[LeahLuong]

Related to #49162. Handy list of links near the end.