These two queries are expected to be the same result (dataset = https://play.clickhouse.com/play?user=play), but actually _not_:

```sql
SELECT actor_login,
                    created_at,
                    toString(event_type) AS event_type,
                    toString(action) AS action, number,
                    merged_at
             FROM github_events
             WHERE repo_name = 'apache/pulsar'
               AND event_type IN
                 ('PullRequestEvent'
                 , 'PullRequestReviewCommentEvent'
                 , 'PullRequestReviewEvent'
                 , 'IssueCommentEvent')
               AND actor_login NOT IN ('github-actions[bot]'
                 , 'codecov-commenter')
AND number = 9276
```

gives:

<img width="1726" alt="image" src="https://user-images.githubusercontent.com/18818196/203365958-a7379e4d-a14d-4544-a36d-09c1bb8783be.png">

```sql
SELECT actor_login,
                    created_at,
                    toString(event_type) AS event_type,
                    toString(action) AS action, number,
                    merged_at
             FROM github_events
             WHERE repo_name = 'apache/pulsar'
               AND multiMatchAny(event_type,
                 ['PullRequestEvent'
                 , 'PullRequestReviewCommentEvent'
                 , 'PullRequestReviewEvent'
                 , 'IssueCommentEvent'])
               AND actor_login NOT IN ('github-actions[bot]'
                 , 'codecov-commenter')
AND number = 9276
```

gives:

<img width="1713" alt="image" src="https://user-images.githubusercontent.com/18818196/203366295-d6d6d55a-03f9-4be4-bb86-ab9dfc0849c6.png">

The latter is expected.

cc @alexey-milovidov 
{
        ColumnUInt8::MutablePtr null_map = copyNullMap(arguments[0].column);
        const auto & nested =  columnGetNested(arguments[0]);
        if (const ColumnFixedString * col_from = checkAndGetColumn<ColumnFixedString>(nested.column.get()))
        {
            auto col_to = ColumnString::create();
            const ColumnFixedString::Chars & data_from = col_from->getChars();
            ColumnString::Chars & data_to = col_to->getChars();
            ColumnString::Offsets & offsets_to = col_to->getOffsets();
            size_t size = col_from->size();
            size_t n = col_from->getN();
            data_to.resize(size * (n + 1)); 
            offsets_to.resize(size);
            size_t offset_from = 0;
            size_t offset_to = 0;
            for (size_t i = 0; i < size; ++i)
            {
                if (!null_map || !null_map->getData()[i])
                {
                    size_t bytes_to_copy = n;
                    while (bytes_to_copy > 0 && data_from[offset_from + bytes_to_copy - 1] == 0)
                        --bytes_to_copy;
                    memcpy(&data_to[offset_to], &data_from[offset_from], bytes_to_copy);
                    offset_to += bytes_to_copy;
                }
                data_to[offset_to] = 0;