Remove fire_walk as it overwrites bones.

mobs.lua

@@ -207,6 +207,8 @@ if minetest.registered_entities["dmobs:dragon"] and minetest.registered_entities
 end
 
 if minetest.registered_entities["dmobs:fox"] then
+	-- fire_walk overwrites bones, under some circumstances.
+	-- Keep it disabled until it's definitely working.
 	local function fire_walk(self)
 		if not fun_caves.custom_ready(self, 1000000) then
 			return
@@ -219,7 +221,7 @@ if minetest.registered_entities["dmobs:fox"] then
 		--look for nodes
 		local nodelist = minetest.find_nodes_in_area(p1, p2, "air")
 		for n in pairs(nodelist) do
-			minetest.set_node(pos, {name='fire:basic_flame'})
+			--minetest.set_node(pos, {name='fire:basic_flame'})
 		end
 	end
 
@@ -234,7 +236,7 @@ if minetest.registered_entities["dmobs:fox"] then
 	m.lava_damage = 0
 	m.textures = { {"fun_caves_fire_fox_2.png"}, }
 	m.base_texture = m.textures[1]
-	m.do_custom = fire_walk
+	--m.do_custom = fire_walk
 
 	minetest.registered_entities["fun_caves:fire_fox"] = m
 	mobs.spawning_mobs["fun_caves:fire_fox"] = true