lei_ok('add-external', $t1, '--mirror', "$http/t1/", \'--mirror v1');
my $mm_dup = "$t1/public-inbox/msgmap.sqlite3";
ok(-f $mm_dup, 't1-mirror indexed');
lei_ok('add-external', $t1, '--mirror', "$http/t1/", \'--mirror v1');
my $mm_dup = "$t1/public-inbox/msgmap.sqlite3";
ok(-f $mm_dup, 't1-mirror indexed');