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|
```
for (const auto & part : all_parts)
    {
        if (part->getState() == DataPartState::Active)
            active_parts_names.push_back(part->name);
        forgetPartAndMoveToDetached(part);
    }
    LOG_INFO(log, "Moved all parts to detached/");
    const bool is_first_replica = createTableIfNotExists(metadata_snapshot);
    LOG_INFO(log, "Created initial ZK nodes, replica is first: {}", is_first_replica);
    if (!is_first_replica)
        createReplica(metadata_snapshot);
    createNewZooKeeperNodes();
    LOG_INFO(log, "Created ZK nodes for table");
    has_metadata_in_zookeeper = true;
    if (is_first_replica)
        for (const String& part_name : active_parts_names)
            attachPartition(std::make_shared<ASTLiteral>(part_name), metadata_snapshot, true, getContext());
    LOG_INFO(log, "Attached all partitions, starting table");
    startup();
}
void StorageReplicatedMergeTree::dropPartNoWaitNoThrow(const String & part_name)
{
    assertNotReadonly();
    if (!is_leader)
        throw Exception("DROP PART cannot be done on this replica because it is not a leader", ErrorCodes::NOT_A_LEADER);
    zkutil::ZooKeeperPtr zookeeper = getZooKeeperAndAssertNotReadonly();
    LogEntry entry;
    dropPartImpl(zookeeper, part_name, entry,  false,  false);
}
void StorageReplicatedMergeTree::dropPart(const String & part_name, bool detach, ContextPtr query_context)