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|
```
entry.create_time = time(nullptr);
            entry.replace_range_entry = std::make_shared<ReplicatedMergeTreeLogEntryData::ReplaceRangeEntry>();
            auto & entry_replace = *entry.replace_range_entry;
            entry_replace.drop_range_part_name = drop_range_fake_part_name;
            entry_replace.from_database = src_table_id.database_name;
            entry_replace.from_table = src_table_id.table_name;
            for (const auto & part : src_parts)
                entry_replace.src_part_names.emplace_back(part->name);
            for (const auto & part : dst_parts)
                entry_replace.new_part_names.emplace_back(part->name);
            for (const String & checksum : part_checksums)
                entry_replace.part_names_checksums.emplace_back(checksum);
            entry_replace.columns_version = -1;
        }
        
        if (replace)
            clearBlocksInPartition(*zookeeper, drop_range.partition_id, drop_range.max_block, drop_range.max_block);
        DataPartsVector parts_to_remove;
        Coordination::Responses op_results;
        try
        {
            Coordination::Requests ops;
            for (size_t i = 0; i < dst_parts.size(); ++i)
            {
                getCommitPartOps(ops, dst_parts[i], block_id_paths[i]);
                ephemeral_locks[i].getUnlockOps(ops);
            }
            if (auto txn = query_context->getZooKeeperMetadataTransaction())
                txn->moveOpsTo(ops);
            delimiting_block_lock->getUnlockOps(ops);