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|
```
{
        is_replicated = storage.supportsReplication();
        is_remote = storage.isRemote();
        replica_name = storage.getReplicaName();
        zookeeper_name = storage.getZooKeeperName();
        table_shared_id = storage.getTableSharedID();
    }
    void save(DiskPtr data_disk, const String & path) const
    {
        auto metadata_disk = data_disk->getMetadataDiskIfExistsOrSelf();
        auto file_path = getFileName(path);
        auto buffer = metadata_disk->writeFile(file_path, DBMS_DEFAULT_BUFFER_SIZE, WriteMode::Rewrite);
        writeIntText(version, *buffer);
        buffer->write("\n", 1);
        writeBoolText(is_replicated, *buffer);
        buffer->write("\n", 1);
        writeBoolText(is_remote, *buffer);
        buffer->write("\n", 1);
        writeString(replica_name, *buffer);
        buffer->write("\n", 1);
        writeString(zookeeper_name, *buffer);
        buffer->write("\n", 1);
        writeString(table_shared_id, *buffer);
        buffer->write("\n", 1);
    }
    bool load(DiskPtr data_disk, const String & path)