Merge remote-tracking branch 'citadel/master' into mobility_flags

code/game/objects/effects/effect_system/effect_system.dm

@@ -48,6 +48,8 @@ would spawn and follow the beaker, even if it is carried or thrown.
 	holder = atom
 
 /datum/effect_system/proc/start()
+	if(QDELETED(src))
+		return
 	for(var/i in 1 to number)
 		if(total_effects > 20)
 			return
@@ -69,7 +71,8 @@ would spawn and follow the beaker, even if it is carried or thrown.
 	for(var/j in 1 to steps_amt)
 		sleep(5)
 		step(E,direction)
-	addtimer(CALLBACK(src, .proc/decrement_total_effect), 20)
+	if(!QDELETED(src))
+		addtimer(CALLBACK(src, .proc/decrement_total_effect), 20)
 
 /datum/effect_system/proc/decrement_total_effect()
 	total_effects--

code/game/objects/effects/effect_system/effects_foam.dm

@@ -126,7 +126,7 @@
 			T.PlaceOnTop(/turf/open/floor/plating/foam, flags = CHANGETURF_INHERIT_AIR)
 		for(var/direction in GLOB.cardinals)
 			var/turf/cardinal_turf = get_step(T, direction)
-			if(get_area(cardinal_turf) != get_area(T)) //We're at an area boundary, so let's block off this turf!
+			if(get_base_area(cardinal_turf) != get_area(T)) //We're at an area boundary, so let's block off this turf!
 				new/obj/structure/foamedmetal(T)
 				break
 	flick("[icon_state]-disolve", src)