**Describe what's wrong**

Query with rollup using same selected field name as the name of underlying column reports structure mismatch

**Does it reproduce on recent release?**

yes

**How to reproduce**

`21.9.2.17`

```sql
CREATE TABLE test
(
    `d` DateTime,
    `a` LowCardinality(String),
    `b` UInt64
)
ENGINE = MergeTree
PARTITION BY toDate(d)
ORDER BY d;

SELECT *
FROM (
    SELECT
        a,
        max((d, b)).2 AS value
    FROM test
    GROUP BY rollup(a)
)
WHERE a <> '';
```

**Expected behavior**

This used to return an ok result on v21.8

**Error message and/or stacktrace**

> Code: 352. DB::Exception: Block structure mismatch in (columns with identical name must have identical structure) stream: different columns:
> notEquals(a, '') LowCardinality(UInt8) ColumnLowCardinality(size = 0, UInt8(size = 0), ColumnUnique(size = 1, UInt8(size = 1)))
> notEquals(a, '') LowCardinality(UInt8) Const(size = 0, ColumnLowCardinality(size = 1, UInt8(size = 1), ColumnUnique(size = 2, UInt8(size = 2)))). (AMBIGUOUS_COLUMN_NAME) (version 21.9.2.17 (official build))



analysis_result.order_by_elements_actions, getSortDescription(query, context), query_info.syntax_analyzer_result);
                }
            }
            else
            {
                if (query_info.projection)
                {
                    query_info.projection->order_optimizer = std::make_shared<ReadInOrderOptimizer>(
                        query_info.projection->group_by_elements_actions,
                        getSortDescriptionFromGroupBy(query),
                        query_info.syntax_analyzer_result);
                }
                else
                {
                    query_info.order_optimizer = std::make_shared<ReadInOrderOptimizer>(
                        analysis_result.group_by_elements_actions, getSortDescriptionFromGroupBy(query), query_info.syntax_analyzer_result);
                }
            }
            
            UInt64 limit = (query.hasFiltration() || query.groupBy()) ? 0 : getLimitForSorting(query, context);
            if (query_info.projection)
                query_info.projection->input_order_info
                    = query_info.projection->order_optimizer->getInputOrder(query_info.projection->desc->metadata, context, limit);
            else
                query_info.input_order_info = query_info.order_optimizer->getInputOrder(metadata_snapshot, context, limit);
        }
        StreamLocalLimits limits;
        SizeLimits leaf_limits;
        std::shared_ptr<const EnabledQuota> quota;