my $res = PublicInbox::IMAP::cmd_list($self, 'tag', 'x', '%');
is(scalar($$res =~ tr/\n/\n/), 2, 'only one result');
like($$res, qr/ x\r\ntag OK/, 'saw expected');
my $res = PublicInbox::IMAP::cmd_list($self, 'tag', 'x', '%');
is(scalar($$res =~ tr/\n/\n/), 2, 'only one result');
like($$res, qr/ x\r\ntag OK/, 'saw expected');