unless ($m_rs->in_storage) {
Koha::Util::MARC::set_marc_field($record, C4::Context->preference('MarcFieldForCreatorId'), $borrowernumber);
Koha::Util::MARC::set_marc_field($record, C4::Context->preference('MarcFieldForCreatorName'), $borrowername);
unless ($m_rs->in_storage) {
Koha::Util::MARC::set_marc_field($record, C4::Context->preference('MarcFieldForCreatorId'), $borrowernumber);
Koha::Util::MARC::set_marc_field($record, C4::Context->preference('MarcFieldForCreatorName'), $borrowername);