overidx: parse_references: less error-prone args

Favor `$smsg->{mid}' instead of `$mid0' to reduce parameters
down-the-line, but favor passing the Email::MIME::Header object
around instead of relying on the bloat-prone `$smsg->{mime}'
and calling ->header_obj on it.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/PublicInbox/SearchIdx.pm b/lib/PublicInbox/SearchIdx.pm
index c0578809..32be9c3f 100644
--- a/lib/PublicInbox/SearchIdx.pm
+++ b/lib/PublicInbox/SearchIdx.pm
@@ -339,9 +339,9 @@ sub add_xapian ($$$$$$) {
                 }
         }
         $smsg->{to} = $smsg->{cc} = '';
-        PublicInbox::OverIdx::parse_references($smsg, $mid0, $mids);
         $smsg->{blob} = $oid;
         $smsg->{mid} = $mid0;
+        PublicInbox::OverIdx::parse_references($smsg, $hdr, $mids);
         my $data = $smsg->to_doc_data;
         $doc->set_data($data);
         if (my $altid = $self->{-altid}) {