Name of schema generated as type value when using oneOf

[raduinsuretech]

openapi-typescript version

7.6.1

Node.js version

20

OS + version

macOs 14.6

Description

When generating a schema from my openapi specification I get this schema:

    OfferBasePersonInternalRequest: {
        /** Format: int64 */
        id?: number;
        cif?: string;
        personType?: string;
        phone?: string;
        email?: string;
        address?: components["schemas"]["OfferAddressInternalRequest"];
    };
    OfferCompanyPersonInternalRequest: {
        personType: "OfferCompanyPersonInternalRequest";
    } & (Omit<components["schemas"]["OfferBasePersonInternalRequest"], "personType"> & {
        caenCode?: string;
        companyName?: string;
        companyType?: string;
    });
    OfferIndividualPersonInternalRequest: {
        personType: "OfferIndividualPersonInternalRequest";
    } & (Omit<components["schemas"]["OfferBasePersonInternalRequest"], "personType"> & {
        firstName?: string;
        lastName?: string;
        foreignPerson?: boolean;
        identityDocumentNo?: string;
        identityDocumentSeries?: string;
    });

the value of personType is incorrect. It should be a string, but here is constrained to be the name of the schema.

This is a my definition:

BasePersonInternalResponse:
  type: object
  properties:
    id:
      type: integer
      format: int64
    cif:
      type: string
    personType:
      type: string
    phone:
      type: string
    email:
      type: string
    address:
      $ref: '#/components/schemas/PersonAddressResponse'
  discriminator:
    propertyName: personType
CompanyPersonInternalResponse:
  type: object
  allOf:
    - $ref: '#/components/schemas/BasePersonInternalResponse'
    - type: object
      properties:
        caenCode:
          type: string
        companyName:
          type: string
        companyType:
          type: string
IndividualPersonInternalResponse:
  type: object
  allOf:
    - $ref: '#/components/schemas/BasePersonInternalResponse'
    - type: object
      properties:
        firstName:
          type: string
        lastName:
          type: string
        identityDocumentNo:
          type: string
        identityDocumentSeries:
          type: string

Reproduction

Use the schemas that I've put in description combined like this:

   user:
      oneOf:
        - $ref: '#/components/schemas/OfferCompanyPersonInternalRequest'
        - $ref: '#/components/schemas/OfferIndividualPersonInternalRequest'

Expected result

personType should be of type string.

Required

• My OpenAPI schema is valid and passes the Redocly validator (npx @redocly/cli@latest lint)

Extra

• I’m willing to open a PR (see CONTRIBUTING.md)