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|
```
{
            if (interserver_scheme != address.scheme)
                throw Exception("Interserver schemes are different: '" + interserver_scheme
                    + "' != '" + address.scheme + "', can't fetch part from " + address.host,
                    ErrorCodes::INTERSERVER_SCHEME_DOESNT_MATCH);
            return fetcher.fetchPart(
                metadata_snapshot,
                getContext(),
                part_name,
                source_replica_path,
                address.host,
                address.replication_port,
                timeouts,
                credentials->getUser(),
                credentials->getPassword(),
                interserver_scheme,
                replicated_fetches_throttler,
                to_detached,
                "",
                &tagger_ptr,
                try_fetch_shared);
        };
    }
    try
    {
        part = get_part();
        if (!to_detached)
        {
            Transaction transaction(*this, NO_TRANSACTION_RAW);
            renameTempPartAndReplace(part, NO_TRANSACTION_RAW, nullptr, &transaction);