can't unselect first oneOf option inside "Try It" (OAS3.0)

[LuccaBitfly]

When documenting an API endpoint using OpenAPI 3.0 having an object field with oneOf inside a request body schema, it is not possible to unselect the first listed oneOf option in the "Try It" UI. For example, using this this as a request body schema:

OneOfSchema:
  type: object
  properties:
    test:
      oneOf:
        - title: "Number input"
          type: object
          properties:
            number_input:
              type: number
        - title: "String input"
          type: object
          properties:
            string_input:
              type: string

When selecting the "String input" option in the "Try It" window:

Then the data preview still shows the example placeholder for the first option, i.e. number_input:

I would expect it to deselect the first option when selecting a different oneOf field, so the payload shown should be:

{
  "test": {
    "string_input": "test test"
  }
}

[LuccaBitfly]

Here's a complete spec you can work with

openapi: 3.0.4
info:
  title: Test API
  version: 1.0.0
paths:
  /test:
    post:
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/OneOfSchema'
      responses:
        '200':
          description: OK
components:
  schemas:
    OneOfSchema:
      type: object
      properties:
        test:
          oneOf:
            - title: Number input
              type: object
              properties:
                number_input:
                  type: number
              required: [number_input]
            - title: String input
              type: object
              properties:
                string_input:
                  type: string
              required: [string_input]
      required: [test]