**Describe the issue**
ClickHouse is unable to start up after upgrading from 20.8 to 21.8. 

There is a replicated table with `:` in zk path and it couldn't be loaded with:

`2021.09.15 03:49:58.435071 [ 633075 ] {} <Error> Application: DB::Exception: Unknown auxiliary ZooKeeper name '/test_prefix'. If it's required it can be added to the section <auxiliary_zookeepers> in config.xml: Cannot attach table `db1`.`table1` from metadata file /var/lib/clickhouse/metadata/db1/table1.sql from query ATTACH TABLE db1.table1 (`field1` String, `date` Date) ENGINE = ReplicatedMergeTree('/test_prefix:db1/{shard}/table1', '{replica}') PARTITION BY toMonth(date) PRIMARY KEY field1 ORDER BY field1 SETTINGS index_granularity = 8192: while loading database `db1` from path /var/lib/clickhouse/metadata/db1
`

**Expected behavior**
ClickHouse server is able to startup after upgrade without schema change. "test_prefix" in "/test_prefix:db1/{shard}/table1" is not interpreted as an auxiliary ZooKeeper name.

catch (...)
    {
        PartLog::addNewParts(getContext(), dst_parts, watch.elapsed(), ExecutionStatus::fromCurrentException());
        throw;
    }
    String log_znode_path = dynamic_cast<const Coordination::CreateResponse &>(*op_results.back()).path_created;
    entry.znode_name = log_znode_path.substr(log_znode_path.find_last_of('/') + 1);
    for (auto & lock : ephemeral_locks)
        lock.assumeUnlocked();
    tryRemovePartsFromZooKeeperWithRetries(parts_to_remove);
    parts_to_remove.clear();
    cleanup_thread.wakeup();
    lock2.reset();
    dest_table_storage->waitForLogEntryToBeProcessedIfNecessary(entry, query_context);
    
    Coordination::Requests ops_src;
    ops_src.emplace_back(zkutil::makeCreateRequest(
        fs::path(zookeeper_path) / "log/log-", entry_delete.toString(), zkutil::CreateMode::PersistentSequential));
    
    ops_src.emplace_back(zkutil::makeSetRequest(fs::path(zookeeper_path) / "log", "", -1));
    delimiting_block_lock->getUnlockOps(ops_src);
    op_results = zookeeper->multi(ops_src);
    log_znode_path = dynamic_cast<const Coordination::CreateResponse &>(*op_results.front()).path_created;
    entry_delete.znode_name = log_znode_path.substr(log_znode_path.find_last_of('/') + 1);
    lock1.reset();
    waitForLogEntryToBeProcessedIfNecessary(entry_delete, query_context);
    
    cleanLastPartNode(partition_id);
}
void StorageReplicatedMergeTree::movePartitionToShard(