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|
```
current_zookeeper->createOrUpdate(replica_path + "/metadata", current_metadata.toString(),
                zkutil::CreateMode::Persistent);
        }
        checkTableStructure(replica_path, metadata_snapshot);
        checkParts(skip_sanity_checks);
        if (current_zookeeper->exists(replica_path + "/metadata_version"))
        {
            metadata_version = parse<int>(current_zookeeper->get(replica_path + "/metadata_version"));
        }
        else
        {
            
            
            
            
            
            Coordination::Stat metadata_stat;
            current_zookeeper->get(zookeeper_path + "/metadata", &metadata_stat);
            metadata_version = metadata_stat.version;
        }
        
        
        clearOldTemporaryDirectories(0);
        clearOldWriteAheadLogs();
    }
    createNewZooKeeperNodes();
    syncPinnedPartUUIDs();
    createTableSharedID();
}
bool StorageReplicatedMergeTree::checkFixedGranularityInZookeeper()