"But that was not the basis upon which the application made by notice dated 16 June was advanced. The application was advanced, essentially, on the basis that the order of13 June 2003 was a nullity. That was, if I may say so, misconceived. The order was not a nullity. It was an order properly made; but an order that was always subject to discharge or variation under the statutory power conferred on the court that made it by section 3 (5) of the 1979 Act."