**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.

}
            else
                throw Coordination::Exception(code, quorum_status_path);
        }
        else
        {
            LOG_TRACE(log, "Quorum {} still not satisfied (have only {} replicas), updating node",
                      quorum_status_path, quorum_entry.replicas.size());
            
            auto code = zookeeper->trySet(quorum_status_path, quorum_entry.toString(), stat.version);
            if (code == Coordination::Error::ZOK)
            {
                break;
            }
            else if (code == Coordination::Error::ZNONODE)
            {
                
                break;
            }
            else if (code == Coordination::Error::ZBADVERSION)
            {
                
                continue;
            }
            else
                throw Coordination::Exception(code, quorum_status_path);
        }
    }
}
void StorageReplicatedMergeTree::cleanLastPartNode(const String & partition_id)