Error when placing stepladder in open air

[EvanBalster]

Describe the bug

activating a stepladder to place it over a ledge, such as off the roof of a one-story building, produces an error like this:

 DEBUG    : Setting furniture f_ladder at (71,67,1) where terrain is t_open_air (which is_open_air)
If this is intentional, set the ALLOW_ON_OPEN_AIR flag on the furniture

 FUNCTION : furn_set
 FILE     : D:\a\Cataclysm-DDA\Cataclysm-DDA\src\map.cpp
 LINE     : 1616
 VERSION  : 579e201

Despite this error message, the stepladder will be placed on the level below as expected.

Steps to reproduce

1. Obtain and wield a stepladder.
2. Navigate to the roof of a one-story building.
3. Walk to the edge of the building.
4. Activate the stepladder and select an open air tile at the edge of the building, one story above ground.

Expected behavior

The stepladder should be placed on the level below (and it is) but should not produce an error message.

Screenshots

No response

Versions and configuration

• OS: Windows
  • OS Version: 10.0.19044.2251 (21H2)
• Game Version: 579e201 [64-bit]
• Graphics Version: Tiles
• Game Language: System language []
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  No Fungal Growth [no_fungal_growth],
  Bionic Professions [package_bionic_professions]
  ]

Additional context

No response

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions. Please do not bump or comment on this issue unless you are actively working on it. Stale issues, and stale issues that are closed are still considered.

[Brambor]

Can confirm, did exactly that

• OS: Windows
  • OS Version: 10.0.19044.2364 (21H2)
• Game Version: 7f881d8 [64-bit]
• Graphics Version: Tiles
• Game Language: English [en]
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  Portal Storms Ignore NPCs [personal_portal_storms],
  No Fungal Growth [no_fungal_growth],
  Bionic Professions [package_bionic_professions]
  ]

[TealcOneill]

/Confirm

• OS: Windows
  • OS Version: 10.0.19045.4291 (22H2)
• Game Version: cdda-experimental-2024-05-12-1705 39e2afa [64-bit]
• Graphics Version: Tiles
• Game Language: System language []
• Mods loaded: [
  Dark Days Ahead [dda],
  Disable NPC Needs [no_npc_food],
  Portal Storms Ignore NPCs [personal_portal_storms],
  Slowdown Fungal Growth [no_fungal_growth]
  ]

[EvanBalster]

Note this issue does not occur when the ladder is placed as a climbing aid (ie, examining a ledge or moving into a ledge with a ladder in inventory). In this case a climbing aid rule is invoked and the ladder is placed on the ground below.