**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))



desc.partition_by.push_back(SortColumnDescription(
                    with_alias->getColumnName(), 1 ,
                    1 ));
        }
    }
    if (definition.order_by)
    {
        for (const auto & column_ast
            : definition.order_by->children)
        {
            
            const auto & order_by_element
                = column_ast->as<ASTOrderByElement &>();
            
            desc.order_by.push_back(
                SortColumnDescription(
                    order_by_element.children.front()->getColumnName(),
                    order_by_element.direction,
                    order_by_element.nulls_direction));
        }
    }
    desc.full_sort_description = desc.partition_by;
    desc.full_sort_description.insert(desc.full_sort_description.end(),
        desc.order_by.begin(), desc.order_by.end());
    if (definition.frame_type != WindowFrame::FrameType::Rows
        && definition.frame_type != WindowFrame::FrameType::Range)
    {
        throw Exception(ErrorCodes::NOT_IMPLEMENTED,
            "Window frame '{}' is not implemented (while processing '{}')",
            definition.frame_type,