[csharp-netcore] How to deal with different response objects?

Description

The Api definition specifies that for different status codes, different objects are returned. The generated client always expects a DataDeliveryReceipt object, if the response is e.g. 412, an ApiException is thrown and I see the ValidationResponse as string in the ErrorContent. I expected to get the Error Code and the ValidationResponse object. What is the intended procedure in such a case or does the generator not support that?

openapi-generator version

6.0.0

OpenAPI declaration file content or url

responses:
        "200":
          description: A receipt of the data received.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DataDeliveryReceipt'
        "400":
          description: Processing conflicts occurred.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ProcessingConflicts'
        "401":
          description: Authorization failure.
        "403":
          description: No permission to the requested data with the given credentials.
        "412":
          description: Validation errors occured.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationResponse'
        "500":
          description: Technical error.

The complete .yaml File can be found here. https://arge-heiwako.de/wp-content/uploads/2022/03/arge-spec-on-site-roles_1_1.zip

Related issues/PRs

https://github.com/OpenAPITools/openapi-generator/issues/9966

Start with the response definitions in the provided OpenAPI YAML and inspect how the generated C# client handles non-success responses through ApiException and ErrorContent. Read related issue #9966, then establish whether typed responses such as ValidationResponse are supported and document or implement the intended behavior.