```sql
drop table if exists src;

create table src( A Int64, B String, C String) Engine=MergeTree order by A
SETTINGS min_bytes_for_wide_part=0;
insert into src values(1, 'one', 'test');

alter table src detach partition tuple();

alter table src modify column B Nullable(String);

alter table src attach partition tuple();
select * from src;
┌─A─┬─B───┬─C────┐
│ 1 │ one │ test │
└───┴─────┴──────┘

alter table src update C = 'test1' where 1 settings mutations_sync=2;

select * from src;
┌─A─┬─B────┬─C─────┐
│ 1 │ ᴺᵁᴸᴸ │ test1 │   -- expected B='one'
└───┴──────┴───────┘
```

```sql
drop table if exists src;
create table src( A String, B String, C String) Engine=MergeTree order by A
SETTINGS min_bytes_for_wide_part=0;
insert into src values('one', 'one', 'test');

alter table src detach partition tuple();

alter table src modify column A LowCardinality(String);

alter table src attach partition tuple();

select * from src;
┌─A───┬─B───┬─C────┐
│ one │ one │ test │
└─────┴─────┴──────┘

alter table src update C = 'test1' where 1 settings mutations_sync=2;

select * from src;

Received exception from server (version 22.9.1):
Code: 49. DB::Exception: Received from localhost:9000. DB::Exception: 
Got empty stream for SerializationLowCardinality keys.: (while reading column A): 
(while reading from part /var/lib/clickhouse/store/11b/11b74812-48b9-4c1f-9bdc-3e7a28137a9e/all_3_3_0_4/ from mark 0 with max_rows_to_read = 1): 
While executing MergeTreeInOrder. (LOGICAL_ERROR)

```

```sql
drop table if exists src;
create table src( A String, B String, C String) Engine=MergeTree order by A
SETTINGS min_bytes_for_wide_part=0;
insert into src values('one', 'one', 'test');

alter table src detach partition tuple();

alter table src modify column A LowCardinality(String);

alter table src attach partition tuple();

select * from src;
┌─A───┬─B───┬─C────┐
│ one │ one │ test │
└─────┴─────┴──────┘

alter table src modify column C LowCardinality(String);

select * from src;

Received exception from server (version 22.9.3):
Code: 49. DB::Exception: Received from localhost:9000. 
DB::Exception: Got empty stream for SerializationLowCardinality keys.: 
```

related https://github.com/ClickHouse/ClickHouse/issues/42083 , https://github.com/ClickHouse/ClickHouse/issues/42074
(basically it's the same one issue, but I opened this one, because I think the root issue is in `alter update`.

it seems `alter update` updates columns.txt for all columns even if they are not participated in the `alter update`.
static void assertSessionIsNotExpired(zkutil::ZooKeeperPtr & zookeeper)
{
    if (!zookeeper)
        throw Exception("No ZooKeeper session.", ErrorCodes::NO_ZOOKEEPER);
    if (zookeeper->expired())
        throw Exception("ZooKeeper session has been expired.", ErrorCodes::NO_ZOOKEEPER);
}
size_t ReplicatedMergeTreeSink::checkQuorumPrecondition(zkutil::ZooKeeperPtr & zookeeper)
{
    if (!isQuorumEnabled())
        return 0;
    quorum_info.status_path = storage.zookeeper_path + "/quorum/status";
    Strings replicas = zookeeper->getChildren(fs::path(storage.zookeeper_path) / "replicas");
    std::vector<std::future<Coordination::ExistsResponse>> replicas_status_futures;
    replicas_status_futures.reserve(replicas.size());
    for (const auto & replica : replicas)
        if (replica != storage.replica_name)
            replicas_status_futures.emplace_back(zookeeper->asyncExists(fs::path(storage.zookeeper_path) / "replicas" / replica / "is_active"));
    std::future<Coordination::GetResponse> is_active_future = zookeeper->asyncTryGet(storage.replica_path + "/is_active");
    std::future<Coordination::GetResponse> host_future = zookeeper->asyncTryGet(storage.replica_path + "/host");
    size_t active_replicas = 1;