Fixes nulls in managed_overlays (#60323)

#60320 highlighted an issue about managed_overlays, this fixes a null i noticed some time ago in them
tgstation · Jul 20, 2021 · f759524 · f759524
1 parent e4af05c
commit f759524
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/code/game/atoms_movable.dm b/code/game/atoms_movable.dm
@@ -168,7 +168,9 @@
 
 /atom/movable/update_overlays()
 	. = ..()
-	. += update_emissive_block()
+	var/emissive_block = update_emissive_block()
+	if(emissive_block)
+		. += emissive_block
 
 /atom/movable/proc/can_zFall(turf/source, levels = 1, turf/target, direction)
 	if(!direction)