@@ -, +, @@ --- Koha/Filter/MARC/ViewPolicy.pm | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/Koha/Filter/MARC/ViewPolicy.pm +++ a/Koha/Filter/MARC/ViewPolicy.pm @@ -125,7 +125,8 @@ sub _filter_field { my $visibility = $marcsubfieldstructure->{$tag}->{$subtag}->{hidden}; $visibility //= 0; - if ( $hide->{$interface}->{$visibility} ) { + my $kohafield = $marcsubfieldstructure->{$tag}->{$subtag}->{kohafield} // ''; + if ( $hide->{$interface}->{$visibility} && $kohafield ne 'biblio.biblionumber' ) { # deleting last subfield doesn't delete field, so # this detects that case to delete the field. @@ -145,7 +146,8 @@ sub _filter_field { # -8 is flagged, and 9/-9 are not implemented. my $visibility = $marcsubfieldstructure->{$tag}->{q{@}}->{hidden}; $visibility //= 0; - if ( $hide->{$interface}->{$visibility} ) { + my $kohafield = $marcsubfieldstructure->{$tag}->{q{@}}->{kohafield} // ''; + if ( $hide->{$interface}->{$visibility} && $kohafield ne 'biblio.biblionumber' ) { $result->delete_fields($field); } --