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|
```
try
    {
        
        auto zookeeper = getZooKeeper();
        Transaction transaction(*this, NO_TRANSACTION_RAW);
        Coordination::Requests ops;
        for (PartDescriptionPtr & part_desc : final_parts)
        {
            renameTempPartAndReplace(part_desc->res_part, NO_TRANSACTION_RAW, nullptr, &transaction);
            getCommitPartOps(ops, part_desc->res_part);
            lockSharedData(*part_desc->res_part, false, part_desc->hardlinked_files);
        }
        if (!ops.empty())
            zookeeper->multi(ops);
        {
            auto data_parts_lock = lockParts();
            transaction.commit(&data_parts_lock);
            if (replace)
            {
                parts_to_remove = removePartsInRangeFromWorkingSetAndGetPartsToRemoveFromZooKeeper(NO_TRANSACTION_RAW, drop_range, data_parts_lock);
                String parts_to_remove_str;
                for (const auto & part : parts_to_remove)
                {
                    parts_to_remove_str += part->name;
                    parts_to_remove_str += " ";
                }
                LOG_TRACE(log, "Replacing {} parts {}with {} parts {}", parts_to_remove.size(), parts_to_remove_str,
                          final_parts.size(), boost::algorithm::join(final_part_names, ", "));
            }
        }