AddRoom fails to generate a prefab inside static layout unless it's in countprefabs, and then it will generate one more than requested.

[GameBoyAdv4002]

In the code I have written below, I expect it to generate a world with one bigberg within the static layout BergArea. If bigberg is absent from count prefabs, it does not spawn at all. If bigberg's count is 0, it also does not spawn. If the count is 1, 2 will spawn, one for the static layout and one just in general. If the count is any other number, it will spawn one more than that number. Is there a way to make it only generate the one instance I want?

 

AddRoom("IronVillage", {
    colour = {r = 0.5, g = 0.6, b = 0.080, a = 0.10},
    value = WORLD_TILES.PAINTEDTURF,
    tags = {"ironislearea"},
    internal_type = NODE_INTERNAL_CONNECTION_TYPE.EdgeCentroid,
    contents =
    {
        countstaticlayouts =
        {
            ["MarkeFarm"] = 3,
            ["BergArea"] = 1,
            ["GarageArea"] = 1
        },
        countprefabs = {
            markeonegarage = 1,
            bigberg = 1,
            mothhatch = 10,
        },
        distributepercent = 0.15,
        distributeprefabs =
        {
            mothhatch = 0.045,
            spinetree = 0.08,
            twiggytree = 0.01,
        },
    }
})

return {
  version = "1.1",
  luaversion = "5.1",
  orientation = "orthogonal",
  width = 40,
  height = 40,
  tilewidth = 16,
  tileheight = 16,
  properties = {},
  tilesets = {
    {
      name = "ground",
      firstgid = 1,
      tilewidth = 64,
      tileheight = 64,
      spacing = 0,
      margin = 0,
      image = "../../../../tools/tiled/dont_starve/tiles.png",
      imagewidth = 512,
      imageheight = 384,
      properties = {},
      tiles = {}
    }
  },
  layers = {
    {
      type = "tilelayer",
      name = "BG_TILES",
      x = 0,
      y = 0,
      width = 40,
      height = 40,
      visible = true,
      opacity = 1,
      properties = {},
      encoding = "lua",
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      }
    },
    {
      type = "objectgroup",
      name = "FG_OBJECTS",
      visible = true,
      opacity = 1,
      properties = {},
      objects = {
        {
          name = "",
          type = "bigberg",
          shape = "rectangle",
          x = 319,
          y = 321,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleironvein",
          shape = "rectangle",
          x = 357,
          y = 136,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleironvein",
          shape = "rectangle",
          x = 401,
          y = 117,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleironvein",
          shape = "rectangle",
          x = 310,
          y = 116,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleironvein",
          shape = "rectangle",
          x = 168,
          y = 475,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleironvein",
          shape = "rectangle",
          x = 128,
          y = 409,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleironvein",
          shape = "rectangle",
          x = 157,
          y = 256,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleironvein",
          shape = "rectangle",
          x = 116,
          y = 349,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleore",
          shape = "rectangle",
          x = 539,
          y = 431,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleore",
          shape = "rectangle",
          x = 518,
          y = 417,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleironvein",
          shape = "rectangle",
          x = 144,
          y = 212,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleironvein",
          shape = "rectangle",
          x = 178,
          y = 158,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleironvein",
          shape = "rectangle",
          x = 546,
          y = 203,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleironvein",
          shape = "rectangle",
          x = 555,
          y = 247,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "isleironvein",
          shape = "rectangle",
          x = 535,
          y = 299,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        },
        {
          name = "",
          type = "drillstickprototyper",
          shape = "rectangle",
          x = 585,
          y = 438,
          width = 0,
          height = 0,
          visible = true,
          properties = {}
        }
      }
    }
  }
}