https://s3.amazonaws.com/clickhouse-test-reports/0/10dc83b7a9c18228c4a4fc0dcfe6b18d2427462e/stress_test__debug__actions_.html

I found weird exception while investigating why ephemeral nodes were not removed for a long time:
https://pastila.nl/?00ec9776/d8858e442f8453f9b9e31a2f1da3cc8b
{
    Coordination::Responses responses;
    Coordination::Error code = multiImpl(requests, responses);
    KeeperMultiException::check(code, requests, responses);
    return responses;
}
Coordination::Error ZooKeeper::tryMulti(const Coordination::Requests & requests, Coordination::Responses & responses)
{
    Coordination::Error code = multiImpl(requests, responses);
    if (code != Coordination::Error::ZOK && !Coordination::isUserError(code))
        throw KeeperException(code);
    return code;
}
Coordination::Error ZooKeeper::syncImpl(const std::string & path, std::string & returned_path)