}
{
my $biblios = Koha::Biblios->search({ -or => { title => undef, title => '' }});
my $biblios = Koha::Biblios->search({
-or => [
title => '',
title => undef,
]
});
if ( $biblios->count ) {
my ( $title_tag, $title_subtag ) = C4::Biblio::GetMarcFromKohaField( 'biblio.title' );
my $title_field = $title_tag // '';
-