Merge pull request #3106 from Citadel-Station-13/upstream-merge-31208

[MIRROR] Makes mobs on fire light up

code/modules/mob/living/living.dm

@@ -884,7 +884,7 @@
 		on_fire = 1
 		src.visible_message("<span class='warning'>[src] catches fire!</span>", \
 						"<span class='userdanger'>You're set on fire!</span>")
-		src.set_light(3)
+		new/obj/effect/dummy/fire(src)
 		throw_alert("fire", /obj/screen/alert/fire)
 		update_fire()
 		return TRUE
@@ -894,7 +894,8 @@
 	if(on_fire)
 		on_fire = 0
 		fire_stacks = 0
-		src.set_light(0)
+		for(var/obj/effect/dummy/fire/F in src)
+			qdel(F)
 		clear_alert("fire")
 		update_fire()