[BUG] oneOf/required does not work correctly for golang

Hi

I have this yaml file:

openapi: 3.0.0
info:
  version: '1.0.0'
  title: 'Test'

paths: {}
components:
  schemas:
    Test:
      type: object
      oneOf:
        - required:
          - test1
        - required:
          - test2
      properties:
        normalField:
          type: string
        test1:
          $ref: '#/components/schemas/Test1'
        test2:
          $ref: '#/components/schemas/Test2'
        normalField2:
          type: string

    Test1: 
      type: object
      required:
        - a
        - b
        - c
      properties:
        a:
          type: int
        b:
          type: string
        c:
          type: string
    Test2:
      type: object
      required:
        - ab
        - bb
        - cc
      properties:
        aa:
          type: int
        bb:
          type: string
        cc:
          type: string

when I execute the generator for golang, then I receive this generated datatype:

// Test - struct for Test 
type Test struct {
    interface{} *interface{}
}

Is it possible to make this better, since basically it gives error and actually the fields are not included at all.

If I remove the oneOf, then it generates the correct datatype, but then I loose the checker functions.
thanks
Akos

Start by reproducing the provided YAML with the Go generator and inspect the generated Test datatype and checker behavior. Trace how oneOf and required are represented in the Go output; done means the generated type includes the relevant fields and preserves validation behavior without collapsing to interface{}.