**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.

{
    assert(!isGlobalContext() || getApplicationType() == ApplicationType::LOCAL);
    local_scalars[name] = block;
}
bool Context::hasScalar(const String & name) const
{
    assert(!isGlobalContext() || getApplicationType() == ApplicationType::LOCAL);
    return scalars.count(name);
}
void Context::addQueryAccessInfo(
    const String & quoted_database_name,
    const String & full_quoted_table_name,
    const Names & column_names,
    const String & projection_name,
    const String & view_name)
{
    assert(!isGlobalContext() || getApplicationType() == ApplicationType::LOCAL);
    std::lock_guard<std::mutex> lock(query_access_info.mutex);
    query_access_info.databases.emplace(quoted_database_name);
    query_access_info.tables.emplace(full_quoted_table_name);
    for (const auto & column_name : column_names)
        query_access_info.columns.emplace(full_quoted_table_name + "." + backQuoteIfNeed(column_name));
    if (!projection_name.empty())
        query_access_info.projections.emplace(full_quoted_table_name + "." + backQuoteIfNeed(projection_name));
    if (!view_name.empty())
        query_access_info.views.emplace(view_name);
}
void Context::addQueryFactoriesInfo(QueryLogFactories factory_type, const String & created_object) const