@@ -, +, @@ Biblio.pm L3334 --- C4/Biblio.pm | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/C4/Biblio.pm +++ a/C4/Biblio.pm @@ -3331,7 +3331,7 @@ sub ModBiblioMarc { my $userenv = C4::Context->userenv; if ($userenv) { my $borrowernumber = $userenv->{number}; - my $borrowername = join ' ', @$userenv{qw(firstname surname)}; + my $borrowername = join ' ', map { $_ // q{} } @$userenv{qw(firstname surname)}; 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); --