[v >= 4.10] requestBody schema does not contain $ref anymore

[bogi158]

Describe the bug From version 4.10, the requestBody schema loaded by OpenApiValidator has changed and does not contain the property $ref anymore. This property was used by openapi-express-generator to give a name to the requestBody automatically.

To Reproduce print the variable request.openapi.schema.requestBody.content['application/json'].schema using version 4.9.5 and then 4.10.0

Actual behavior

Does not contain the property $ref

{
  // missing $ref here
  example: {
   //...
  },
  properties: {    
   //...
    other_object: {
      // not the $ref I am looking for
      '$ref': '#/components/schemas/MyRequestBody_other_object'
    }
  },
  required: [],
  type: 'object'
}

Expected behavior

Should contain the property $ref as before

{
 '$ref': '#/components/schemas/MyRequestBody'
}

Examples and context

Generate any server with openapi-express-generator, then run it with version 4.9.5 of openapi-express-validator and with 4.10.0

[paresh-vantiva]

Facing the same issue as we were using openapi generator with old version, but after switching to latest version missing $ref is causing issue. Any workaround or fix implemented?