We use Clickhouse version 22.3.3.44, and met with with some wrong behaviour - 
queries "ALTER TABLE ... MODIFY COMMENT ... " does not work on ReplicatedMergeTree engine.

Bug reproduce script:
```
CREATE TABLE sandbox.test__calendar
(
    `dttm` DateTime COMMENT 'date and time',
    `timestamp` Int64 COMMENT 'event timestamp',
    `year_num` Int32 COMMENT 'year number'
)
ENGINE = ReplicatedMergeTree() PARTITION BY year_num ORDER BY timestamp
COMMENT 'Comment text for test table';

SELECT comment FROM system.tables WHERE name like 'test__calendar'; -- 1 row selected with correct comment text

ALTER TABLE sandbox.test__calendar MODIFY COMMENT 'Some new more detailed text of comment';

SELECT comment FROM system.tables WHERE name like 'test__calendar'; -- 1 row selected, but with OLD(!) comment text
```

Maybe it will be helpfull, ALTER TABLE query returns such result:
```
host            |status|error|num_hosts_remaining|num_hosts_active|
----------------+------+----+-----------------------+------------------+
10.7.179.41     |     0|    |                      1|                 0|
ak1-st-data-01  |     0|    |                      0|                 0|
```
{
    LOG_INFO(log, "Going to replace lost part {} with empty part", lost_part_name);
    auto metadata_snapshot = getInMemoryMetadataPtr();
    auto settings = getSettings();
    constexpr static auto TMP_PREFIX = "tmp_empty_";
    auto new_part_info = MergeTreePartInfo::fromPartName(lost_part_name, format_version);
    auto block = metadata_snapshot->getSampleBlock();
    DB::IMergeTreeDataPart::TTLInfos move_ttl_infos;
    NamesAndTypesList columns = metadata_snapshot->getColumns().getAllPhysical().filter(block.getNames());
    ReservationPtr reservation = reserveSpacePreferringTTLRules(metadata_snapshot, 0, move_ttl_infos, time(nullptr), 0, true);
    VolumePtr volume = getStoragePolicy()->getVolume(0);
    auto minmax_idx = std::make_shared<IMergeTreeDataPart::MinMaxIndex>();
    minmax_idx->update(block, getMinMaxColumnsNames(metadata_snapshot->getPartitionKey()));
    auto new_data_part = createPart(
        lost_part_name,
        choosePartType(0, block.rows()),
        new_part_info,
        createVolumeFromReservation(reservation, volume),
        TMP_PREFIX + lost_part_name);
    if (settings->assign_part_uuids)
        new_data_part->uuid = UUIDHelpers::generateV4();