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.
const IMergeTreeDataPart & part,
    const DiskPtr & disk,
    const String & path)
{
    const auto settings = getSettings();
    auto disk_type = disk->getType();
    if (!(disk->supportZeroCopyReplication() && settings->allow_remote_fs_zero_copy_replication))
        return false;
    String replica = getSharedDataReplica(part, disk_type);
    
    if (replica.empty())
        return false;
    return executeFetchShared(replica, part.name, disk, path);
}
String StorageReplicatedMergeTree::getSharedDataReplica(