my $ops = { '' => [ \&import_done, $lei ] };
$lei->{auth}->op_merge($ops, $self) if $lei->{auth};
$self->{-wq_nr_workers} = $j // 1; # locked
- my ($op_c, undef) = $lei->workers_start($self, 'lei_import', $j, $ops);
+ (my $op_c, $ops) = $lei->workers_start($self, 'lei_import', $j, $ops);
$lei->{imp} = $self;
net_merge_complete($self) unless $lei->{auth};
$op_c->op_wait_event($ops);