Identifiable car2 = (Identifiable)client.getFlashHistory(0).iterator().next().get();
assertNotSame(car1, car2);
assertEquals(Identifiable.MANAGED, car2.getStatus());
//
client.render();
long id3 = Registry.<Long>unset("car");
status = Registry.<Integer>unset("status");
assertEquals(Identifiable.MANAGED, status);
assertEquals(id2, id3);
assertEquals(1, client.getFlashHistory(1).size());