Fixes UI glitch when losing cuffs from fractures, resisting, or cult magic

code/game/gamemodes/cult/runes.dm

@@ -775,13 +775,9 @@ var/list/sacrificed = list()
 					return
 				cultist.buckled = null
 				if (cultist.handcuffed)
-					cultist.handcuffed.loc = cultist.loc
-					cultist.handcuffed = null
-					cultist.update_inv_handcuffed()
+					cultist.drop_from_inventory(cultist.handcuffed)
 				if (cultist.legcuffed)
-					cultist.legcuffed.loc = cultist.loc
-					cultist.legcuffed = null
-					cultist.update_inv_legcuffed()
+					cultist.drop_from_inventory(cultist.legcuffed)
 				if (istype(cultist.wear_mask, /obj/item/clothing/mask/muzzle))
 					cultist.u_equip(cultist.wear_mask)
 				if(istype(cultist.loc, /obj/structure/closet)&&cultist.loc:welded)

code/modules/mob/living/living.dm

@@ -256,8 +256,15 @@
 	buckled = initial(src.buckled)
 	if(iscarbon(src))
 		var/mob/living/carbon/C = src
+
+		if (C.handcuffed && !initial(C.handcuffed))
+			C.drop_from_inventory(C.handcuffed)
 		C.handcuffed = initial(C.handcuffed)
 
+		if (C.legcuffed && !initial(C.legcuffed))
+			C.drop_from_inventory(C.legcuffed)
+		C.legcuffed = initial(C.legcuffed)
+
 /mob/living/proc/rejuvenate()
 
 	// shut down various types of badness
@@ -627,8 +634,6 @@
 							O.show_message("\red <B>[CM] manages to remove the handcuffs!</B>", 1)
 						CM << "\blue You successfully remove \the [CM.handcuffed]."
 						CM.drop_from_inventory(CM.handcuffed)
-						CM.handcuffed = null
-						CM.update_inv_handcuffed()
 
 		else if(CM.legcuffed && CM.canmove && (CM.last_special <= world.time))
 			CM.next_move = world.time + 100
@@ -766,4 +771,4 @@
 		loc = target_vent.loc
 		var/area/new_area = get_area(loc)
 		if(new_area)
-			new_area.Entered(src)
+			new_area.Entered(src)

code/modules/organs/organ_external.dm

@@ -583,18 +583,14 @@ This function completely restores a damaged organ to perfect condition.
 			"\The [owner.handcuffed.name] falls off of [owner.name].",\
 			"\The [owner.handcuffed.name] falls off you.")
 
-		owner.handcuffed.loc = owner.loc
-		owner.handcuffed = null
-		owner.update_inv_handcuffed()
+		owner.drop_from_inventory(owner.handcuffed)
 
 	if (owner.legcuffed && body_part in list(FOOT_LEFT, FOOT_RIGHT, LEG_LEFT, LEG_RIGHT))
 		owner.visible_message(\
 			"\The [owner.legcuffed.name] falls off of [owner.name].",\
 			"\The [owner.legcuffed.name] falls off you.")
 
-		owner.legcuffed.loc = owner.loc
-		owner.legcuffed = null
-		owner.update_inv_legcuffed()
+		owner.drop_from_inventory(owner.legcuffed)
 
 /datum/organ/external/proc/bandage()
 	var/rval = 0