**How to reproduce**
Clickhouse server 20.13.1.5273
```
CREATE TABLE default.test
(
`key` UInt32,
`ts` DateTime CODEC(DoubleDelta, LZ4),
`db_time` DateTime DEFAULT now() COMMENT 'spout-ignore' CODEC(DoubleDelta, LZ4)
)
ENGINE = MergeTree
PARTITION BY toStartOfTenMinutes(db_time)
ORDER BY (key, ts)
TTL db_time + toIntervalHour(3)
SETTINGS index_granularity = 8192, merge_with_ttl_timeout = 3600, min_rows_for_compact_part = 1000000, min_bytes_for_compact_part = 200000000, in_memory_parts_enable_wal = 0;


INSERT INTO test(key, ts) SELECT number % 1000, now() + intDiv(number,1000) FROM numbers(500);

SELECT * FROM test;
500 rows in set. Elapsed: 0.003 sec.

DETACH TABLE test;

ATTACH TABLE test;

SELECT * FROM test;

0 rows in set. Elapsed: 0.002 sec.
```

**Expected behavior**
Clickhouse would flush parts on disk.
return;
    }
    DataPartsVector broken_parts_to_detach;
    DataPartsVector duplicate_parts_to_remove;
    if (num_parts > 0)
        loadDataPartsFromDisk(
            broken_parts_to_detach, duplicate_parts_to_remove, pool, num_parts, parts_queue, skip_sanity_checks, settings);
    if (!parts_from_wal.empty())
        loadDataPartsFromWAL(broken_parts_to_detach, duplicate_parts_to_remove, parts_from_wal, part_lock);
    for (auto & part : broken_parts_to_detach)
        part->renameToDetached("broken-on-start"); 
    for (auto & part : duplicate_parts_to_remove)
        part->remove();
    
    
    
    if (data_parts_indexes.size() >= 2)
    {
        
        auto prev_jt = data_parts_by_state_and_info.begin();
        auto curr_jt = std::next(prev_jt);
        auto deactivate_part = [&] (DataPartIteratorByStateAndInfo it)
        {
            (*it)->remove_time.store((*it)->modification_time, std::memory_order_relaxed);
            modifyPartState(it, DataPartState::Outdated);
            removePartContributionToDataVolume(*it);
        };
        (*prev_jt)->assertState({DataPartState::Committed});
        while (curr_jt != data_parts_by_state_and_info.end() && (*curr_jt)->getState() == DataPartState::Committed)
        {