childDeleted.setArtistName("DDD");
Artist childHollow = (Artist) objects.get(3);
childContext.invalidateObjects(Collections.singleton(childHollow));
childContext.commitChanges();
assertEquals(PersistenceState.COMMITTED, childNew.getPersistenceState());
assertEquals(PersistenceState.COMMITTED, childModified.getPersistenceState());
assertEquals(PersistenceState.COMMITTED, childCommitted.getPersistenceState());
assertEquals(PersistenceState.TRANSIENT, childDeleted.getPersistenceState());