For some reasons when we delete a MergeTree Part in atomic way something may go wrong - and leave the `delete_tmp_*` folder or it's part on disk. This may lead to a disk space consumption over time.

It's suggested to delete this folders at least at server start-up. Current solution with `clearOldTemporaryDirectories()` doesn't work because this method is called periodically from a thread without any locks or advisory on folders - it may cause the race conditions.
{
    if (!mutations_sync)
        return;
    
    auto zookeeper = getZooKeeper();
    Strings replicas;
    if (mutations_sync == 2) 
    {
        replicas = zookeeper->getChildren(fs::path(zookeeper_path) / "replicas");
        
        for (auto it = replicas.begin(); it != replicas.end(); ++it)
        {
            if (*it == replica_name)
            {
                std::iter_swap(it, replicas.rbegin());
                break;
            }
        }
    }
    else if (mutations_sync == 1) 
        replicas.push_back(replica_name);
    waitMutationToFinishOnReplicas(replicas, znode_name);
}
std::vector<MergeTreeMutationStatus> StorageReplicatedMergeTree::getMutationsStatus() const