Merge pull request #10215 from Ghommie/Ghommie-cit473

Ports "Fixes ChangeTurf CHANGETURF_INHERIT_AIR flag and add it to all calls."

code/game/objects/items/stacks/stack.dm

@@ -192,9 +192,14 @@
 		var/obj/O
 		if(R.max_res_amount > 1) //Is it a stack?
 			O = new R.result_type(usr.drop_location(), R.res_amount * multiplier)
-		else
+		else if(ispath(R.result_type, /turf))
+			var/turf/T = usr.drop_location()
+			if(!isturf(T))
+				return
+			T.PlaceOnTop(R.result_type, flags = CHANGETURF_INHERIT_AIR)
 			O = new R.result_type(usr.drop_location())
-		O.setDir(usr.dir)
+		if(O)
+			O.setDir(usr.dir)
 		use(R.req_amount * multiplier)
 
 		//START: oh fuck i'm so sorry

code/game/objects/items/twohanded.dm

@@ -872,7 +872,7 @@
 		user.visible_message("<span class='danger'>[user] blasts \the [target] with \the [src]!</span>")
 		playsound(target, 'sound/magic/disintegrate.ogg', 100, 1)
 		W.break_wall()
-		W.ScrapeAway()
+		W.ScrapeAway(flags = CHANGETURF_INHERIT_AIR)
 		return
 
 //HF blade