Merge pull request #12678 from Kyep/depot_loot_fix

Fixes 12677 - depot self-destruct leaves loot behind

code/game/objects/structures/depot.dm

@@ -114,12 +114,16 @@
 		depotarea.updateicon()
 
 	for(var/obj/structure/closet/L in range(30, T))
+		for(var/obj/O in L)
+			qdel(O)
 		L.open()
 	for(var/mob/living/M in range(30, T))
 		M.gib()
 	for(var/obj/mecha/E in range(30, T))
-		E.Destroy()
+		E.take_damage(E.max_integrity)
 	explosion(get_turf(src), 25, 35, 45, 55, 1, 1, 60, 0, 0)
 	STOP_PROCESSING(SSobj, src)
 	qdel(src)
 
+/obj/effect/overload/ex_act(severity)
+	return