- my $smsg = $ng->over->get_art($n) or return;
- hdr_mid_response($self, $xhdr, $ng, $n, $range,
- xref($self, $ng, $smsg));
+ my $smsg = $ibx->over->get_art($n) or return;
+ hdr_mid_response($self, $xhdr, $ibx, $n, $range,
+ xref($self, $ibx, $smsg));