@Test
public void should_merge_modifications() throws Exception {
compoundKey = new ClusteredKey(RandomUtils.nextLong(0,Long.MAX_VALUE), "name");
Holder holder = new Holder("content");
Holder newHolder = new Holder("new_content");
entity = new ClusteredEntityWithObjectValue(compoundKey, holder);
entity = manager.insert(entity);
entity.setValue(newHolder);