$ref not supported in api (path) params

[mvnrhd]

When referencing a component via $ref as a param type, the resolved datatype on the parameter (accessed via allParams) is number and isEnum is false.
Now with this resulting model there's no possibility to correctly resolve the enum name.
Consider the following schema:

...
'/user/{type}':
    get:
      tags:
        - GetUsers
      summary: GetUsersByType
      operationId: GetUsersByType
      parameters:
        - name: type
          in: path
          required: true
          schema:
            $ref: '#/components/schemas/UserType'
      responses:
        '200':
          ...
components:
  schemas:
    UserType:
      enum:
        - 0
        - 1
        - 2
        - 3
        - 4
        - 5
      type: integer
      format: int32
      x-enum-varnames:
        - TypeA
        - TypeB
        - TypeC
        - TypeD
        - TypeE
        - TypeF

This is the result:

"allParams": [
                {
                  "isHeaderParam": false,
                  "isQueryParam": false,
                  "isPathParam": true,
                  "isBodyParam": false,
                  "isFormParam": false,
                  "paramName": "type",
                  "baseName": "type",
                  "required": true,
                  "optional": false,
                  "dataType": "number",
                  "%dataType%": "number",
                  "format": "int32",
                  "enum": [
                    0,
                    1,
                    2,
                    3,
                    4,
                    5
                  ],
                  "example": "0",
                  "isBoolean": false,
                  "isPrimitiveType": false,
                  "dataFormat": "int32",
                  "isDate": false,
                  "isDateTime": false,
                  "description": "",
                  "isFile": false,
                  "isEnum": false,
                  "vendorExtensions": {},
                  "-first": true,
                  "-last": false,
                  "hasMore": true
                }
]