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|
```
String out_reason;
        if (!merge_pred.canMergeSinglePart(part, &out_reason))
        {
            if (throw_if_noop)
                throw Exception(ErrorCodes::PART_IS_TEMPORARILY_LOCKED, out_reason);
            return false;
        }
        if (partIsLastQuorumPart(part->info))
        {
            if (throw_if_noop)
                throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Part {} is last inserted part with quorum in partition. Cannot drop", part_name);
            return false;
        }
        if (partIsInsertingWithParallelQuorum(part->info))
        {
            if (throw_if_noop)
                throw Exception(ErrorCodes::NOT_IMPLEMENTED, "Part {} is inserting with parallel quorum. Cannot drop", part_name);
            return false;
        }
        Coordination::Requests ops;
        getClearBlocksInPartitionOps(ops, *zookeeper, part_info.partition_id, part_info.min_block, part_info.max_block);
        size_t clear_block_ops_size = ops.size();
        
        
        entry.type = LogEntry::DROP_RANGE;
        entry.source_replica = replica_name;