fix: Unfrozen mobs keep their bodies. (#26663)

code/modules/admin/verbs/freeze.dm

@@ -64,6 +64,12 @@ GLOBAL_LIST_EMPTY(frozen_atom_list) // A list of admin-frozen atoms.
 		revive()
 
 /mob/living/simple_animal/admin_Freeze(admin)
+	// If we were frozen before this call, make sure we
+	// reset our health before attempting a rejuvenate,
+	// as removing status effects can perform stat calls.
+	if(frozen && del_on_death)
+		health = admin_prev_health
+
 	if(..()) // The result of the parent call here will be the value of the mob's `frozen` variable after they get (un)frozen.
 		admin_prev_health = health
 		health = 0