/**
  * As per last function the ContributionAggregate class is unsetting 'receive_date_from, receive_date_to
  * I think the introduction of 'pseudofield' may have made that obsolete but would need to test
  * making a change (test all child reports) so for now lets just reset & call parent
  *
  * @param array $statistics
  */
 function filterStat(&$statistics)
 {
     $this->_params['receive_date_from'] = $this->_params['receive_date_from_stash'];
     $this->_params['receive_date_to'] = $this->_params['receive_date_to_stash'];
     parent::filterStat($statistics);
 }