my $ovv = PublicInbox::LeiOverview->new($self) or return;
$self->atfork_prepare_wq($lxs);
$lxs->wq_workers_start('lei_xsearch', $xj, $self->oldset);
my $ovv = PublicInbox::LeiOverview->new($self) or return;
$self->atfork_prepare_wq($lxs);
$lxs->wq_workers_start('lei_xsearch', $xj, $self->oldset);