Failure invoking listener method 'public void com.enetcyberserver.pages.CurrentVotePage.selectVariant
(org.apache.tapestry.IRequestCycle,java.lang.Integer)' on $CurrentVotePage_9@1c4bcda
[CurrentVote]: a different object with the same identifier value was already associated with the
 session: [com.enetcyberserver.domain.Voting# 2 ];
 nested exception is org.hibernate.NonUniqueObjectException: a different object with 
the same identifier value was already associated with the session: [com.enetcyberserver.domain.Voting# 2 ]