Fix PostnDAO->exists method
Fix PostnDAO->exists method

Ppjet6/movim,movim/movim,edhelas/movim,movim/movim,Anon215/movim,edhelas/movim,Anon215/movim,Anon215/movim,Anon215/movim,edhelas/movim,movim/movim,Ppjet6/movim,Ppjet6/movim,edhelas/movim