koha bug list

1、Bug 18757 - Problem when importing only items in MARC records

The bug is that when MARC Flavour is UNIMARC the XML serialization fails because its is looking in field 100$a which does not exist.
You see in logs the error : 

Unsupported UNIMARC character encoding [] for XML output for UNIMARC; 100$a

code change：

sub _unimarc_encoding {
    my $f = shift;
    my $r = shift;

    my $pos = 26;
    $pos = 13 if (lc($f) eq 'unimarcauth');

    my $enc = substr( $r->subfield(100 => 'a'), $pos, 2 );

    if ($enc eq '01' || $enc eq '03') {
        return 'ISO-8859-1';
    } elsif ($enc eq '50') {
        return 'UTF-8';
    } else {
        return 'GBK';
        #die "Unsupported UNIMARC character encoding [$enc] for XML output for $f; 100\$a -> " . $r->subfield(100 => 'a');
    }
}