More compat (#17228)

* some more 516 compat

* .

* also we should keep that equal

* fix

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code/game/objects/effects/chem/coating.dm

@@ -7,10 +7,7 @@
 	icon_state = "dirt"
 
 /obj/effect/decal/cleanable/chemcoating/Initialize()
-	. = ..()
 	create_reagents(100)
-
-/obj/effect/decal/cleanable/chemcoating/Initialize()
 	. = ..()
 	var/turf/T = get_turf(src)
 	if(T)

code/game/objects/items/weapons/inducer_vr.dm

@@ -258,6 +258,8 @@
 	var/mob/living/carbon/human/hume
 
 /obj/item/cell/standin/Initialize(mapload, var/mob/living/carbon/human/H)
+	if(!istype(H))
+		return INITIALIZE_HINT_QDEL
 	. = ..()
 	hume = H
 	charge = H.nutrition

code/game/objects/structures/safe.dm

@@ -139,7 +139,7 @@ FLOOR SAFES
 		return
 
 	if(href_list["retrieve"])
-		user << browse("", "window=safe") // Close the menu
+		user << browse(null, "window=safe") // Close the menu
 
 		var/obj/item/P = locate(href_list["retrieve"]) in src
 		if(open)