**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.

ephemeral_locks.emplace_back(std::move(*lock));
        block_id_paths.emplace_back(block_id_path);
        part_checksums.emplace_back(hash_hex);
    }
    ReplicatedMergeTreeLogEntryData entry;
    {
        auto src_table_id = src_data.getStorageID();
        entry.type = ReplicatedMergeTreeLogEntryData::REPLACE_RANGE;
        entry.source_replica = replica_name;
        entry.create_time = time(nullptr);
        entry.replace_range_entry = std::make_shared<ReplicatedMergeTreeLogEntryData::ReplaceRangeEntry>();
        auto & entry_replace = *entry.replace_range_entry;
        entry_replace.drop_range_part_name = drop_range_fake_part_name;
        entry_replace.from_database = src_table_id.database_name;
        entry_replace.from_table = src_table_id.table_name;
        for (const auto & part : src_parts)
            entry_replace.src_part_names.emplace_back(part->name);
        for (const auto & part : dst_parts)
            entry_replace.new_part_names.emplace_back(part->name);
        for (const String & checksum : part_checksums)
            entry_replace.part_names_checksums.emplace_back(checksum);
        entry_replace.columns_version = -1;
    }
    
    if (replace)
        clearBlocksInPartition(*zookeeper, drop_range.partition_id, drop_range.max_block, drop_range.max_block);
    DataPartsVector parts_to_remove;
    Coordination::Responses op_results;
    try
    {