OK, then i do understand the `post*` stuff better. Had a bad feeling 
when seeing that `postPersist` just works after `flush()` in the test, 
cause i thought `post*` would be between `persist()` and `flush()`. But 
now i understand the reason. Means all `post* ` events should be fired 
after its flush (except `postLoad*`), cause we are shure that it had 
worked.