**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))



ExpressionAnalysisResult(
        SelectQueryExpressionAnalyzer & query_analyzer,
        const StorageMetadataPtr & metadata_snapshot,
        bool first_stage,
        bool second_stage,
        bool only_types,
        const FilterDAGInfoPtr & filter_info,
        const Block & source_header);
    
    bool hasFilter() const { return filter_info.get(); }
    bool hasJoin() const { return join.get(); }
    bool hasPrewhere() const { return prewhere_info.get(); }
    bool hasWhere() const { return before_where.get(); }
    bool hasHaving() const { return before_having.get(); }
    bool hasLimitBy() const { return before_limit_by.get(); }
    void removeExtraColumns() const;
    void checkActions() const;
    void finalize(const ExpressionActionsChain & chain, size_t where_step_num, const ASTSelectQuery & query);
};
class SelectQueryExpressionAnalyzer : public ExpressionAnalyzer