Merge pull request #5401 from Citadel-Station-13/upstream-merge-35459

[MIRROR] Fix a runtime if someone is deleted on the arrivals shuttle

code/__HELPERS/game.dm

@@ -539,7 +539,7 @@
 	winset(C, "mainwindow", "flash=5")
 
 /proc/AnnounceArrival(var/mob/living/carbon/human/character, var/rank)
-	if(!SSticker.IsRoundInProgress() || !character)
+	if(!SSticker.IsRoundInProgress() || QDELETED(character))
 		return
 	var/area/A = get_area(character)
 	var/message = "<span class='game deadsay'><span class='name'>\