| 797 | 
                      @values = $itemrecord->field($tag)->subfield($subtag) if ($itemrecord && defined($itemrecord->field($tag)->subfield($subtag)));  | 
              797 | 
                      @values = $itemrecord->field($tag)->subfield($subtag) if ($itemrecord && defined($itemrecord->field($tag)) && defined($itemrecord->field($tag)->subfield($subtag)));  | 
            
        
          | 799 | 
                      my $subfield_data = generate_subfield_form($tag, $subtag, $value, $tagslib, $tagslib->{$tag}->{$subtag}, $branches, $today_iso, $biblionumber, $temp, \@loop_data, $i);  | 
          799 | 
                      my $subfield_data = generate_subfield_form($tag, $subtag, $value, $tagslib, $tagslib->{$tag}->{$subtag}, $branches, $today_iso, $biblionumber, $temp, \@loop_data, $i);  | 
        
        
          | 800 | 
                      push (@loop_data, $subfield_data);  | 
          800 | 
                      push (@loop_data, $subfield_data);  |