Corrects errors

code/game/objects/effects/temporary_visuals/miscellaneous.dm

@@ -429,11 +429,12 @@
 	var/image/I = image(icon = 'icons/effects/effects.dmi', icon_state = "heart", layer = ABOVE_MOB_LAYER, loc = src)
 	var/datum/atom_hud/alternate_appearance/basic/one_person/alt_appearance = add_alt_appearance(
 		/datum/atom_hud/alternate_appearance/basic/one_person,
-		"heart",
+		"heart_[REF(src)]",
 		I,
 		NONE,
 		seer
 	)
+	alt_appearance_weakref = WEAKREF(alt_appearance)
 	I.alpha = 255
 	I.appearance_flags = RESET_ALPHA
 	animate(I, alpha = 0, time = duration)

code/modules/antagonists/_common/antag_spawner.dm

@@ -133,9 +133,9 @@
 		to_chat(user, "<span class='warning'>Unable to connect to Syndicate command. Please wait and try again later or use the teleporter on your uplink to get your points refunded.</span>")
 
 /obj/item/antag_spawner/nuke_ops/spawn_antag(client/C, turf/T, kind, datum/mind/user)
-	var/mob/living/carbon/human/M = new/mob/living/carbon/human(T)
-	C.prefs.apply_prefs_to(M)
-	M.key = C.key
+	var/mob/living/carbon/human/nukie = new/mob/living/carbon/human(T)
+	C.prefs.apply_prefs_to(nukie)
+	nukie.key = C.key
 	if(length(GLOB.newplayer_start)) // needed as hud code doesn't render huds if the atom (in this case the nukie) is in nullspace, so just move the nukie somewhere safe
 		nukie.forceMove(pick(GLOB.newplayer_start))
 	else
@@ -147,8 +147,8 @@
 
 	var/datum/antagonist/nukeop/creator_op = user.has_antag_datum(/datum/antagonist/nukeop,TRUE)
 	if(creator_op)
-		M.mind.add_antag_datum(new_op,creator_op.nuke_team)
-		M.mind.special_role = "Nuclear Operative"
+		nukie.mind.add_antag_datum(new_op,creator_op.nuke_team)
+		nukie.mind.special_role = "Nuclear Operative"
 
 //////CLOWN OP
 /obj/item/antag_spawner/nuke_ops/clown