Burning tables makes holes

[BROtania]

Describe the bug

if you set fire to furniture (I've only tested f_table, f_coffee_table, f_desk), then when burning, some of the floors under them collapse.gorenje If you use this, then instead of a bunch of resources and many hours of digging, you can just set fire to furniture. works only with some types of floors.

Steps To Reproduce

1. create any floor
2. place table on this floor
3. burn table
4. wait ~1 hour
5. now you have a hole

Screenshots

Versions and configuration

OS: Windows 10 (win_64x). Versions: all versions from last stable (Cataclysm-BN 0.4), or maybe it work on older versions

Additional context

No response

[scarf005]

@RoyalFox2140 could this be solved soley using JSON?

[RoyalFox2140]

Nope. I've set paper walls on fire last night and got this bug. Look at the ter_set field here. Something bad is going on because it doesn't respect what furniture or terrain SHOULD become on destruction.

{
    "type": "terrain",
    "id": "t_paper",
    "name": "paper wall",
    "description": "A huge wall of pulpy mass, covered in sticky wasp saliva.  You could smash it down effortlessly.",
    "symbol": "#",
    "color": "white",
    "move_cost": 0,
    "coverage": 100,
    "flags": [ "FLAMMABLE_ASH", "NOITEM", "WALL", "NO_SCENT" ],
    "bash": {
      "str_min": 1,
      "str_max": 6,
      "sound": "rrrrip!",
      "sound_fail": "slap!",
      "sound_vol": 8,
      "sound_fail_vol": 4,
      "ter_set": "t_floor_paper"
    }
  },