Fixes reverse flowing belts (#37355)

code/modules/recycling/conveyor2.dm

@@ -160,7 +160,7 @@
 			var/turf/T = get_step(loc, directions[i])
 			var/obj/machinery/conveyor/C = locate() in T
 			if(C && (C.dir & C.dir-1) && !C.smoothed) //found an unsmoothed diagonal conveyor belt
-				var/list/secondarydirections = conveyor_directions(C.dir) //retrieve its dirs
+				var/list/secondarydirections = conveyor_directions(C.dir, C.in_reverse) //retrieve its dirs
 				if(directions[i] == opposite_dirs[secondarydirections[i]]) //check if the direction it is pointing is towards/away from us, if necessary reverse it
 					in_reverse = 1
 					C.smoothed = 1