Schema details not shown with oneOf for primitive types

[jean-baptiste-exorde]

Describe the bug

Hi, I have an issue when using oneOf in the schema. If the schema referenced by oneOf is a primitive type (like integer or string), only the type is shown in the documentation, not the details of the schema. But, if the schema is an object, the details are shown.

Expected behavior

Schema details should be shown for primitive types (example with redocly):

Current behavior

Only the type is shown for primitive types:

Full schema is shown for object type:

Steps to reproduce

1. Use the following openapi spec.
2. run yarn docusaurus gen-api-docs all && yarn start
3. Open docusaurus an go to the page that shows the API schema

In the example below, the Foo schema is an oneOf of 3 base schemas: two primitive types and one object.

I put the Foo schema in in the request body and the response, the result is the same: the object schema is shown as expected, but the integer and string schema are not.

Openapi spec

openapi: 3.0.3
servers:
  - url: https://
info:
  title: ""
  version: "1.0"
paths:
  /demo:
    get:
      summary: Demo
      requestBody:
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/Foo"
      responses:
        "200":
          description: successful operation
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Foo"
components:
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
  schemas:
    integerSchema:
      type: integer
      format: int32
      description: I'm an integer!
      multipleOf: 5
      minimum: 5
      maximum: 6000
      default: 60
    stringSchema:
      type: string
      description: I'm a string!
      pattern: ^some.*pattern$
      default: some default value
      example: example value
    objectSchema:
      type: object
      properties:
        id:
          $ref: "#/components/schemas/integerSchema"
        name:
          $ref: "#/components/schemas/stringSchema"
      xml:
        name: Tag
    Foo:
      oneOf:
        - $ref: "#/components/schemas/integerSchema"
        - $ref: "#/components/schemas/stringSchema"
        - $ref: "#/components/schemas/objectSchema"

Context

Latest version of Docusaurus and OpenAPI plugin, fresh install.

[sserrata]

Hi @jean-baptiste-exorde, thanks for reporting. I'll add it to our roadmap.

[sserrata]

Should be addressed in #895