my $res_info = Koha::Holds->search(
{ 'reserve.biblionumber' => $bibnum, %where },
{ prefetch => [ 'borrowernumber', 'itembib', 'biblio' ],
order_by => 'reserve.reservedate',
order_by => 'priority',
alias => 'reserve'
}
)->next; # get first item in results
-