Revenant nightvision fix

code/modules/mob/living/simple_animal/hostile/statue.dm

@@ -39,6 +39,7 @@
 
 	search_objects = 1 // So that it can see through walls
 
+	see_invisible = SEE_INVISIBLE_OBSERVER_NOLIGHTING
 	sight = SEE_SELF|SEE_MOBS|SEE_OBJS|SEE_TURFS
 	anchored = 1
 	status_flags = GODMODE // Cannot push also
@@ -56,9 +57,6 @@
 	AddSpell(new /obj/effect/proc_holder/spell/aoe_turf/blindness(null))
 	AddSpell(new /obj/effect/proc_holder/spell/targeted/night_vision(null))
 
-	// Give nightvision
-	see_invisible = SEE_INVISIBLE_OBSERVER_NOLIGHTING
-
 	// Set creator
 	if(creator)
 		src.creator = creator
@@ -190,7 +188,7 @@
 
 //Toggle Night Vision
 /obj/effect/proc_holder/spell/targeted/night_vision
-	name = "Toggle Nightvision \[ON\]"
+	name = "Toggle Nightvision"
 	desc = "Toggle your nightvision mode."
 
 	charge_max = 10
@@ -199,17 +197,15 @@
 	message = "<span class='notice'>You toggle your night vision!</span>"
 	range = -1
 	include_user = 1
+	var/non_night_vision = SEE_INVISIBLE_LIVING
+	var/night_vision = SEE_INVISIBLE_OBSERVER_NOLIGHTING
 
 /obj/effect/proc_holder/spell/targeted/night_vision/cast(list/targets, mob/user = usr)
-
 	for(var/mob/living/target in targets)
-		if(target.see_invisible == SEE_INVISIBLE_LIVING)
-			target.see_invisible = SEE_INVISIBLE_OBSERVER_NOLIGHTING
-			name = "Toggle Nightvision \[ON\]"
+		if(target.see_invisible == non_night_vision)
+			target.see_invisible = night_vision
 		else
-			target.see_invisible = SEE_INVISIBLE_LIVING
-			name = "Toggle Nightvision \[OFF\]"
-	return
+			target.see_invisible = non_night_vision
 
 /mob/living/simple_animal/hostile/statue/sentience_act()
 	faction -= "neutral"

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

@@ -712,16 +712,17 @@
 /mob/living/simple_animal/proc/sentience_act() //Called when a simple animal gains sentience via gold slime potion
 	return
 
-/mob/living/simple_animal/update_sight()
+/mob/living/simple_animal/update_sight(reset_sight = FALSE)
 	if(!client)
 		return
 	if(stat == DEAD)
 		grant_death_vision()
 		return
 
-	see_invisible = initial(see_invisible)
-	see_in_dark = initial(see_in_dark)
-	sight = initial(sight)
+	if(reset_sight)
+		see_invisible = initial(see_invisible)
+		see_in_dark = initial(see_in_dark)
+		sight = initial(sight)
 
 	if(client.eye != src)
 		var/atom/A = client.eye