Fixes ghost ghosting bug (#7010)

code/modules/mob/mob.dm

@@ -12,7 +12,8 @@
 		client.screen = list()
 	if(mind && mind.current == src)
 		spellremove(src)
-	ghostize()
+	if(!istype(src,/mob/observer)) //CHOMPEdit
+		ghostize() //CHOMPEdit
 	QDEL_NULL(plane_holder)
 	..()
 	return QDEL_HINT_HARDDEL_NOW

modular_chomp/code/modules/mob/dead/observer/observer.dm

@@ -5,7 +5,8 @@
 /mob/observer/Destroy()
 	if(body_backup)
 		qdel(body_backup)
-	..()
+		body_backup = null
+	return ..()
 
 // Persistence vars not included as we probably don't want losing limbs in the game mean losing limbs in real life. Definitely can't backfire.
 /mob/observer/dead/verb/fake_enter_vr()