Issue on discriminator mapping

[Fimeo]

References in the mapping key of discriminator schema component is not resolved during the openapi-merge with dispute prefix.

References are not renamed properly and the final openapi file is invalid.

For example

The first openapi file openapi1.yml

openapi: 3.0.3
info:
  title: Swagger
  description: description
  version: 1.0.0
servers:
  - url: http://example.com
tags:
  - name: pet
    description: Everything about your Pets
    externalDocs:
      description: Find out more
      url: http://swagger.io
paths:
  /pet:
    post:
      tags:
        - pet
      summary: Add a new pet to the store
      description: Add a new pet to the store
      operationId: addPet
      requestBody:
        description: Create a new pet in the store
        content:
          application/json:
            schema:
              oneOf:
                - $ref: '#/components/schemas/Pet'
                - $ref: '#/components/schemas/Pet2'
              discriminator:
                propertyName: name
                mapping:
                  pet: '#/components/schemas/Pet'
                  pet2: '#/components/schemas/Pet2'
        required: true
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Pet'
components:
  schemas:
    Pet:
      required:
        - id
        - name
      type: object
      properties:
        id:
          type: integer
          format: int64
          example: 10
        name:
          type: string
          example: doggie
    Pet2:
      required:
        - id
        - name
        - lastName
      type: object
      properties:
        id:
          type: integer
          format: int64
          example: 10
        name:
          type: string
          example: doggie
        lastName:
          type: string
          example: doogle
  requestBodies:
    Pet:
      description: Pet object that needs to be added to the store
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Pet'

The second openapifile : openapi2.yml

openapi: 3.0.3
info:
  title: Swagger
  description: description
  version: 1.0.0
servers:
  - url: http://example.com
tags:
  - name: pet
    description: Everything about your Pets
    externalDocs:
      description: Find out more
      url: http://swagger.io
paths:
  /pet2:
    post:
      tags:
        - pet
      summary: Add a new pet to the store
      description: Add a new pet to the store
      operationId: addPet
      requestBody:
        description: Create a new pet in the store
        content:
          application/json:
            schema:
              oneOf:
                - $ref: '#/components/schemas/Pet'
                - $ref: '#/components/schemas/Pet2'
              discriminator:
                propertyName: name
                mapping:
                  pet: '#/components/schemas/Pet'
                  pet2: '#/components/schemas/Pet2'
        required: true
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Pet'
components:
  schemas:
    Pet:
      required:
        - id
        - name
      type: object
      properties:
        id:
          type: integer
          format: int64
          example: 10
        name:
          type: string
          example: doggie
    Pet2:
      required:
        - id
        - name
        - lastName
      type: object
      properties:
        id:
          type: integer
          format: int64
          example: 10
        name:
          type: string
          example: doggie
        lastName:
          type: string
          example: doogle
  requestBodies:
    Pet:
      description: Pet object that needs to be added to the store
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Pet'

And the merge configuration : (according to the openapi-merge-cli package)

{
    "inputs": [
      {
        "inputFile": "./openapi1.yml",
        "dispute": {
            "prefix": "openapi1",
            "alwaysApply": true
        }
      },
      {
        "inputFile": "./openapi2.yml",
        "dispute": {
            "prefix": "openapi2",
            "alwaysApply": true
        }
      }
    ], 
    "output": "./openap3.yml"
  }

The result is :

openapi: 3.0.3
info:
  title: Swagger
  description: description
  version: 1.0.0
servers:
  - url: 'http://example.com'
tags:
  - name: pet
    description: Everything about your Pets
    externalDocs:
      description: Find out more
      url: 'http://swagger.io'
paths:
  /pet:
    post:
      tags:
        - pet
      summary: Add a new pet to the store
      description: Add a new pet to the store
      operationId: addPet
      requestBody:
        description: Create a new pet in the store
        content:
          application/json:
            schema:
              oneOf:
                - $ref: '#/components/schemas/openapi1Pet'
                - $ref: '#/components/schemas/openapi1Pet2'
              discriminator:
                propertyName: name
                mapping:
                  pet: '#/components/schemas/Pet'
                  pet2: '#/components/schemas/Pet2'
        required: true
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/openapi1Pet'
  /pet2:
    post:
      tags:
        - pet
      summary: Add a new pet to the store
      description: Add a new pet to the store
      operationId: openapi2addPet
      requestBody:
        description: Create a new pet in the store
        content:
          application/json:
            schema:
              oneOf:
                - $ref: '#/components/schemas/openapi2Pet'
                - $ref: '#/components/schemas/openapi2Pet2'
              discriminator:
                propertyName: name
                mapping:
                  pet: '#/components/schemas/Pet'
                  pet2: '#/components/schemas/Pet2'
        required: true
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/openapi2Pet'
components:
  schemas:
    openapi1Pet:
      required:
        - id
        - name
      type: object
      properties:
        id:
          type: integer
          format: int64
          example: 10
        name:
          type: string
          example: doggie
    openapi1Pet2:
      required:
        - id
        - name
        - lastName
      type: object
      properties:
        id:
          type: integer
          format: int64
          example: 10
        name:
          type: string
          example: doggie
        lastName:
          type: string
          example: doogle
    openapi2Pet:
      required:
        - id
        - name
      type: object
      properties:
        id:
          type: integer
          format: int64
          example: 10
        name:
          type: string
          example: doggie
    openapi2Pet2:
      required:
        - id
        - name
        - lastName
      type: object
      properties:
        id:
          type: integer
          format: int64
          example: 10
        name:
          type: string
          example: doggie
        lastName:
          type: string
          example: doogle
  requestBodies:
    openapi1Pet:
      description: Pet object that needs to be added to the store
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/openapi1Pet'
    openapi2Pet:
      description: Pet object that needs to be added to the store
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/openapi2Pet'

Where the following content is invalid :

          application/json:
            schema:
              oneOf:
                - $ref: '#/components/schemas/openapi1Pet'
                - $ref: '#/components/schemas/openapi1Pet2'
              discriminator:
                propertyName: name
                mapping:
                  pet: '#/components/schemas/Pet'
                  pet2: '#/components/schemas/Pet2'

Reference of components are well renamed in the oneOf property but not in the mapping discriminator.