fixes deleted cultists still being considered cultists (#24336)

code/game/gamemodes/cult/cult_mode.dm

@@ -164,6 +164,7 @@
 		cult_objs.study(cult_mind.current)
 		to_chat(cult_mind.current, "<span class='motd'>For more information, check the wiki page: ([GLOB.configuration.url.wiki_url]/index.php/Cultist)</span>")
 		RegisterSignal(cult_mind.current, COMSIG_MOB_STATCHANGE, PROC_REF(cultist_stat_change))
+		RegisterSignal(cult_mind.current, COMSIG_PARENT_QDELETING, PROC_REF(remove_cultist))
 		return TRUE
 
 /datum/game_mode/proc/remove_cultist(datum/mind/cult_mind, show_message = TRUE, remove_gear = FALSE, mob/target_mob)
@@ -204,6 +205,7 @@
 		cultist.visible_message("<span class='cult'>[cultist] looks like [cultist.p_they()] just reverted to [cultist.p_their()] old faith!</span>",
 		"<span class='userdanger'>An unfamiliar white light flashes through your mind, cleansing the taint of [SSticker.cultdat ? SSticker.cultdat.entity_title1 : "Nar'Sie"] and the memories of your time as their servant with it.</span>")
 	UnregisterSignal(cult_mind.current, COMSIG_MOB_STATCHANGE)
+	UnregisterSignal(cult_mind.current, COMSIG_PARENT_QDELETING)
 
 /datum/game_mode/proc/add_cult_immunity(mob/living/target)
 	ADD_TRAIT(target, TRAIT_CULT_IMMUNITY, CULT_TRAIT)

code/modules/mob/living/simple_animal/constructs.dm

@@ -57,7 +57,6 @@
 	return ..()
 
 /mob/living/simple_animal/hostile/construct/death(gibbed)
-	SSticker.mode.remove_cultist(show_message = FALSE, target_mob = src)
 	if(held_body) // Null check for empty bodies
 		held_body.forceMove(get_turf(src))
 		SSticker.mode.add_cult_immunity(held_body)
@@ -71,7 +70,11 @@
 		held_body.cancel_camera()
 	new /obj/effect/temp_visual/cult/sparks(get_turf(src))
 	playsound(src, 'sound/effects/pylon_shatter.ogg', 40, TRUE)
-	. = ..()
+	return ..()
+
+/mob/living/simple_animal/hostile/construct/Destroy()
+	SSticker.mode.remove_cultist(show_message = FALSE, target_mob = src)
+	return ..()
 
 /mob/living/simple_animal/hostile/construct/proc/add_held_body(atom/movable/body)
 	held_body = body

code/modules/mob/living/simple_animal/shade.dm

@@ -38,9 +38,9 @@
 	. = ..()
 	icon_state = SSticker.cultdat?.shade_icon_state
 
-/mob/living/simple_animal/shade/death(gibbed)
-	. = ..()
+/mob/living/simple_animal/shade/Destroy()
 	SSticker.mode.remove_cultist(show_message = FALSE, target_mob = src)
+	return ..()
 
 /mob/living/simple_animal/shade/attackby(obj/item/O, mob/user)  //Marker -Agouri
 	if(istype(O, /obj/item/soulstone))