This should be here before real Del proc check for references to clear.

code/controllers/garbage.dm

@@ -51,7 +51,6 @@ var/global/datum/controller/garbage_collector/garbage
 			WARNING("gc process force delete [A.type]")
 			#endif
 
-			sleep(-1)
 			del A
 
 			remainingForceDelPerTick--
@@ -100,6 +99,10 @@ var/global/datum/controller/garbage_collector/garbage
 	var/gcDestroyed
 	var/timeDestroyed
 
+/datum/Del()
+	sleep(-1)
+	..()
+
 /*
  * Like Del(), but for qdel.
  * Called BEFORE qdel moves shit.