Log pos info only prior to crash

mods/ENTITIES/mcl_mobs/api.lua

@@ -510,6 +510,10 @@ function mob_class:on_step(dtime)
 		else
 			warn_user_error ()
 			local pos = self.object:get_pos()
+			local node = minetest.get_node(pos)
+			if node and node.name == "ignore" then
+				minetest.log("warning", "Pos is ignored: " .. dump(pos))
+			end
 			log_error (dump(retVal), dump(pos), dump(self))
 		end
 	else

mods/ENTITIES/mcl_mobs/physics.lua

@@ -628,7 +628,7 @@ function mob_class:do_env_damage()
 			-- put below code in this block if we can prove that unloaded maps are causing crash.
 			-- it should warn then error
 		else
-			minetest.log("warning", "Pos is ignored: " .. dump(pos))
+			--minetest.log("warning", "Pos is ignored: " .. dump(pos))
 		end
 
 		local sunlight = minetest.get_natural_light(pos, self.time_of_day)