Looks like https://github.com/ClickHouse/ClickHouse/pull/21303 is broke also "clear column" for such columns.

How to reproduce:

```
CREATE TABLE test.TTAdmLog
(
    `ts` DateTime,
    `event_date` Date DEFAULT toDate(ts),
    `impression_id` String DEFAULT '',
    `creative_id` String DEFAULT '',
    `creative_adm` String DEFAULT '',
    `impression_id_compressed` FixedString(16) DEFAULT UUIDStringToNum(impression_id),
    `impression_id_hashed` UInt16 DEFAULT reinterpretAsUInt16(impression_id_compressed),
)
ENGINE = ReplicatedMergeTree('/clickhouse/tables/{shard}/TTAdmLogTest', '{replica}')
PARTITION BY toMonday(event_date)
ORDER BY (event_date, impression_id_hashed)
SAMPLE BY impression_id_hashed
SETTINGS replicated_deduplication_window = 1000, replicated_deduplication_window_seconds = 864000, index_granularity = 8192

CREATE MATERIALIZED VIEW test.TTView
(
    `event_date` Date,
    `creative_id` String,
    `creative_adm` AggregateFunction(anyLast, String),
)
ENGINE = ReplicatedAggregatingMergeTree('/clickhouse/tables/{shard}/TTViewTest', '{replica}', event_date, (event_date, creative_id), 8192) AS
SELECT 
    toStartOfMonth(event_date) AS event_date,
    arrayJoin(splitByChar(',', creative_id)) AS creative_id,
    anyLastState(creative_adm) AS creative_adm,
FROM test.TTAdmLog
GROUP BY 
    event_date,
    creative_id,

```


ClickHouse server version 20.9.3 revision 54439.

```
alter table test.TTAdmLog clear column creative_adm in partition '2021-03-22'

OK

```
ClickHouse server version 21.4.3 revision 54447.

```
alter table test.TTAdmLog  clear column creative_adm in partition '2021-03-22'

DB::Exception: Trying to ALTER DROP column creative_adm which is referenced by materialized view ['TTView'].

```

MatcherFn matcher,
    const StorageMetadataPtr & metadata_snapshot,
    const String & with_name,
    ContextPtr local_context)
{
    String clickhouse_path = Poco::Path(local_context->getPath()).makeAbsolute().toString();
    String default_shadow_path = clickhouse_path + "shadow/";
    Poco::File(default_shadow_path).createDirectories();
    auto increment = Increment(default_shadow_path + "increment.txt").get(true);
    const String shadow_path = "shadow/";
    /
    const auto data_parts = getDataParts();
    String backup_name = (!with_name.empty() ? escapeForFileName(with_name) : toString(increment));
    String backup_path = shadow_path + backup_name + "/";
    for (const auto & disk : getStoragePolicy()->getDisks())
        disk->onFreeze(backup_path);
    PartitionCommandsResultInfo result;
    size_t parts_processed = 0;
    for (const auto & part : data_parts)
    {
        if (!matcher(part->info.partition_id))
            continue;
        LOG_DEBUG(log, "Freezing part {} snapshot will be placed at {}", part->name, backup_path);
        part->volume->getDisk()->createDirectories(backup_path);
        String backup_part_path = backup_path + relative_data_path + part->relative_path;
        if (auto part_in_memory = asInMemoryPart(part))
            part_in_memory->flushToDisk(backup_path + relative_data_path, part->relative_path, metadata_snapshot);
        else
            localBackup(part->volume->getDisk(), part->getFullRelativePath(), backup_part_path);