Django-cte produces more CTEs when using UNION of two queryset

[ptbang]

To use the same CTE for both queries and merge them with UNION, I use the following code:

cte = With(Product.objects.values('id', 'level', 'category_id'))
levels = cte.queryset().with_cte(cte).values('level').annotate(
    agg_field=Value('level'),
    field_value=cte.col.level,
    count=Count(cte.col.level),
)
categories = cte.queryset().with_cte(cte).values('category_id').annotate(
    agg_field=Value('category_id'),
    field_value=cte.col.category_id,
    count=Count(cte.col.category_id),
)
queryset = levels.union(categories).order_by('agg_field', 'field_value')
print(queryset.query)

The output of the above code is:

(
    WITH RECURSIVE "cte" AS MATERIALIZED (
        SELECT DISTINCT
            "product"."id", "product"."level", "product"."category_id"
        FROM "product"
        ORDER BY "product"."id" ASC
    )
    SELECT 'level' AS "agg_field", ("cte"."level") AS "field_value", COUNT("cte"."level") AS "count"
    FROM "cte"
    GROUP BY "cte"."level", 2
)
UNION (
    WITH RECURSIVE "cte" AS MATERIALIZED (
        SELECT DISTINCT
            "product"."id", "product"."level", "product"."category_id"
        FROM "product"
        ORDER BY "product"."id" ASC
    )
    SELECT 'category_id' AS "agg_field", ("cte"."category_id") AS "field_value", COUNT("cte"."category_id") AS "count"
    FROM "cte"
    GROUP BY "cte"."status_id", 2
)
ORDER BY 1 ASC, 2 ASC

As you can see, the above code produces two identical CTEs for each queryset. The expected behavior is to use the same CTE for both queries. The expected output is:

WITH RECURSIVE "cte" AS MATERIALIZED (
    SELECT DISTINCT
        "product"."id", "product"."level", "product"."category_id"
    FROM "product"
    ORDER BY "product"."id" ASC
)
SELECT 'level' AS "agg_field", ("cte"."level") AS "field_value", COUNT("cte"."level") AS "count"
FROM "cte"
GROUP BY "cte"."level"
UNION
SELECT 'category_id' AS "agg_field", ("cte"."category_id") AS "field_value", COUNT("cte"."category_id") AS "count"
FROM "cte"
GROUP BY "cte"."category_id"
ORDER BY 1 ASC, 2 ASC

Is there any way to use the same CTE for both queries and merge them with UNION?
PS. Django version 5.0, django-cte ver. 1.3.3