1 files changed, 9 insertions, 3 deletions
diff --git a/lib/PublicInbox/OverIdx.pm b/lib/PublicInbox/OverIdx.pm
index db4b7738..840e2c2a 100644
--- a/lib/PublicInbox/OverIdx.pm
+++ b/lib/PublicInbox/OverIdx.pm
@@ -170,8 +170,14 @@ sub _resolve_mid_to_tid {
                  $$tid = $cur_tid;
          } else { # rethreading, queue up dead ghosts
                  $$tid = next_tid($self);
-                my $num = $smsg->{num};
-                push(@{$self->{-ghosts_to_delete}}, $num) if $num < 0;
+                my $n = $smsg->{num};
+                if ($n > 0) {
+                        $self->{dbh}->prepare_cached(<<'')->execute($$tid, $n);
+UPDATE over SET tid = ? WHERE num = ?
+
+                } elsif ($n < 0) {
+                        push(@{$self->{-ghosts_to_delete}}, $n);
+                }
          }
          1;
  }
@@ -294,7 +300,7 @@ sub _add_over {
                  }
          } elsif ($n < 0) { # ghost
                  $$old_tid //= $cur_valid ? $cur_tid : next_tid($self);
-                link_refs($self, $refs, $$old_tid);
+                $$old_tid = link_refs($self, $refs, $$old_tid);
                  delete_by_num($self, $n);
                  $$v++;
          }