* no need to deref status author account, will already be deref'd during previous getStatusByAP{IRI,Model}()
* don't unset the isNew flag on dereference data race
* improved code comment
* no need to deref status author account, will already be deref'd during previous getStatusByAP{IRI,Model}()
* don't unset the isNew flag on dereference data race
* improved code comment