`allOf` in oas3 is handled incorrectly under Windows making examples not fail the mediatype validation

Describe the bug

allOf in oas3 is handled incorrectly making examples fail the validation

To Reproduce Steps to reproduce the behavior:

1. Given this .redocly.yaml file

lint:
  extends:
    - recommended
  rules:
    info-contact: off

1. And this OpenAPI file: (openapi.yaml)

openapi: "3.0.3"
info:
  title: bugtest
  version: "1.0"
  description: Demo
  license:
    name: DEMO
    url: https://demo.com
servers:
  - url: http://demo.com/api

components:
  examples:
    DemoResponse:
      description: Demo
      value:
        name: "demo"
        demo: "Demo"

  schemas:
    Demo:
      type: object
      required:
        - name
        - demo
      properties:
        name:
          type: string
          maxLength: 100
        demo:
          type: string

    DemoAllOf:
      allOf:
      - type: object
        required:
          - name
        properties:
          name:
            type: string
            maxLength: 100
      - type: object
        required:
          - demo
        properties:
          demo:
            type: string

paths:
  /demo:
    summary: "Demo with schema NO allOf and NO baseRef"
    get:
      summary: "Get demo no refs"
      operationId: getDemoNoRefs
      description: "Returns Demo No Refs"
      responses:
        200:
          description: Demo No Refs
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Demo"
              examples:
                Demo1:
                  $ref: "#/components/examples/DemoResponse"

  /demoAllOf:
    summary: " Demo with schema allOf and NO baseRef"
    get:
      summary: "Get demo no refs"
      operationId: getDemoAllOf
      description: "Returns Demo refs with baseRef"
      responses:
        200:
          description: Demo refs with baseRef
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/DemoAllOf"
              examples:
                Demo:
                  $ref: "#/components/examples/DemoResponse"

1. Run this command: npx @redocly/openapi-cli lint openapi.yaml
2. See error On Windows 10: NONE On github ubuntu-latest: warnings from rule: no-invalid-media-type-examples because allOf is not correctly handled

Expected behavior No warnings should be generated on ubuntu-latest or WSL 2 with Ubuntu 20.04 (other linux versions not tested)

Logs If applicable, add logs to help explain your problem.

OpenAPI definition If applicable, add an OpenAPI definition and .redocly.yaml configuration file that helps reproduce the problem. At a minimum, please state the specification version(s) you’re using (e.g. 2.0, 3.0, 3.1).

openapi-cli Version(s) What version of openapi-cli are you using? latest (with npx)

Node.js Version(s) What version of node.js are you using? Latest LTS Version: 14.15.1 (includes npm 6.14.8)

Additional context Add any other context about the problem here.

[RomanHotsiy]

@CommCody in this rule, we decided to disallow additional properties by default (like if each schema had additionalProperties: false). This is a very common mistake people make (do not set additionalProperties: false).

You can configure this behaviour in the .redocly.yaml:

lint:
  rules:
    no-invalid-media-type-examples:
      severity: warn
      disallowAdditionalProperties: false

See: https://redoc.ly/docs/cli/built-in-rules/#no-invalid-media-type-examples

It is strange it does not show any warnings in Windows. We have to check this.

[antonyc]

Confirm, reproduces for me.