**Describe what's wrong**

If you have more than 2 row policies with the same column used in conditions, ClickHouse tries to rewrite them in IN clause, but it doesn't work.

**Does it reproduce on recent release?**

Yes. 
ClickHouse 21.11, 21.8

**How to reproduce**

```
CREATE TABLE test_row
(
    `key` UInt32,
    `value` UInt32
)
ENGINE = MergeTree
ORDER BY key;

INSERT INTO test_row SELECT
    number,
    number
FROM numbers(10);

CREATE ROW POLICY IF NOT EXISTS key_1 ON test_row FOR SELECT USING key =1 TO default;
CREATE ROW POLICY IF NOT EXISTS key_2 ON test_row FOR SELECT USING key =2 TO default;

 SELECT * FROM test_row;

SELECT *
FROM test_row

Query id: c282f548-cf06-45b6-a187-b0ee37062514

┌─key─┬─value─┐
│   1 │     1 │
│   2 │     2 │
└─────┴───────┘

2 rows in set. Elapsed: 0.005 sec.

CREATE ROW POLICY IF NOT EXISTS key_3 ON test_row FOR SELECT USING key =3 TO default;

SELECT *
FROM test_row


0 rows in set. Elapsed: 0.017 sec.

Received exception from server (version 21.12.1):
Code: 35. DB::Exception: Received from localhost:9000. DB::Exception: Number of arguments for function "or" should be at least 2: passed 1: While processing or(key IN (1, 2, 3)), key, value. (TOO_FEW_ARGUMENTS_FOR_FUNCTION)

SET optimize_min_equality_disjunction_chain_length = 10;

SELECT *
FROM test_row
WHERE 1

Query id: 74325911-824d-4121-80de-cb5d9819cf77


0 rows in set. Elapsed: 0.003 sec.

Received exception from server (version 21.12.1):
Code: 35. DB::Exception: Received from localhost:9000. DB::Exception: Number of arguments for function "or" should be at least 2: passed 1: While processing or(key IN (1, 2, 3)), key, value. (TOO_FEW_ARGUMENTS_FOR_FUNCTION)
```

**Expected behavior**

Query works.


**Additional context**

Looks like that or chain rewrite doesn't work correctly for row policies.

auto sorting_step = std::make_unique<SortingStep>(
        query_plan.getCurrentDataStream(),
        output_order_descr,
        settings.max_block_size,
        limit,
        SizeLimits(settings.max_rows_to_sort, settings.max_bytes_to_sort, settings.sort_overflow_mode),
        settings.max_bytes_before_remerge_sort,
        settings.remerge_sort_lowered_memory_bytes_ratio,
        settings.max_bytes_before_external_sort,
        context->getTemporaryVolume(),
        settings.min_free_disk_space_for_temporary_data);
    sorting_step->setStepDescription("Sorting for ORDER BY");
    query_plan.addStep(std::move(sorting_step));
}
void InterpreterSelectQuery::executeMergeSorted(QueryPlan & query_plan, const std::string & description)
{
    auto & query = getSelectQuery();
    SortDescription order_descr = getSortDescription(query, context);
    UInt64 limit = getLimitForSorting(query, context);
    executeMergeSorted(query_plan, order_descr, limit, description);
}
void InterpreterSelectQuery::executeMergeSorted(QueryPlan & query_plan, const SortDescription & sort_description, UInt64 limit, const std::string & description)
{
    const Settings & settings = context->getSettingsRef();
    auto merging_sorted
        = std::make_unique<SortingStep>(query_plan.getCurrentDataStream(), sort_description, settings.max_block_size, limit);
    merging_sorted->setStepDescription("Merge sorted streams " + description);
    query_plan.addStep(std::move(merging_sorted));
}
void InterpreterSelectQuery::executeProjection(QueryPlan & query_plan, const ActionsDAGPtr & expression)