turns the baseturf var into a part time list (#33705)

code/modules/mob/living/simple_animal/bot/floorbot.dm

@@ -321,9 +321,9 @@
 		sleep(50)
 		if(mode == BOT_REPAIRING && src.loc == target_turf)
 			if(autotile) //Build the floor and include a tile.
-				target_turf.ChangeTurf(/turf/open/floor/plasteel)
+				target_turf.PlaceOnTop(/turf/open/floor/plasteel)
 			else //Build a hull plating without a floor tile.
-				target_turf.ChangeTurf(/turf/open/floor/plating)
+				target_turf.PlaceOnTop(/turf/open/floor/plating)
 
 	else
 		var/turf/open/floor/F = target_turf

code/modules/mob/living/simple_animal/hostile/mining_mobs/necropolis_tendril.dm

@@ -39,7 +39,7 @@
 	for(var/F in RANGE_TURFS(1, src))
 		if(ismineralturf(F))
 			var/turf/closed/mineral/M = F
-			M.ChangeTurf(M.turf_type,FALSE,FALSE,TRUE)
+			M.ChangeTurf(M.turf_type, null, CHANGETURF_IGNORE_AIR)
 	gps = new /obj/item/device/gps/internal(src)
 
 /mob/living/simple_animal/hostile/spawner/lavaland/Destroy()