Merge pull request #10901 from aleksix/ai-cryo-fix

AI's Wipe Core now properly ghosts the player

code/modules/mob/living/silicon/ai/latejoin.dm

@@ -37,6 +37,9 @@ var/global/list/empty_playable_ai_cores = list()
 			var/datum/game_mode/traitor/autotraitor/current_mode = ticker.mode
 			current_mode.possible_traitors.Remove(src)
 
+	// Ghost the current player and disallow them to return to the body
+	ghostize(FALSE)
+	// Delete the old AI shell
 	qdel(src)
 
 // TODO: Move away from the insane name-based landmark system