Wrong openapi spec when using country_dict=True

[andriijas]

When using CountryField(country_dict=True) the expected JSON output is fine but the openapi schema is wrong. This makes it hard to generate for example a typescript client based on the generated schema.

from django.contrib.auth import get_user_model
from rest_framework import serializers
from django_countries.serializers import CountryFieldMixin
from django_countries.serializer_fields import CountryField


class UserSerializer(CountryFieldMixin, serializers.ModelSerializer):
    country = CountryField(country_dict=True)

    class Meta:
        model = get_user_model()
        fields = (
            "id",
            "email",
            "first_name",
            "last_name",
            "country",
        )

However when looking at drf builtin openapi spec, or generating one with drf_spectactular

./manage.py spectacular --color --file schema.yml

country on User is still specified as an enum in the schema.yml

User:
      type: object
      properties:
        id:
          type: integer
          readOnly: true
        email:
          type: string
          format: email
          title: Email address
          maxLength: 254
        first_name:
          type: string
          maxLength: 150
        last_name:
          type: string
          maxLength: 150
        country:
          $ref: '#/components/schemas/CountryEnum' <-- Correct when not using country_dict wrong when using country_dict=True
      required:
      - country
      - email
      - id

#/components/schemas/CountryEnum
  CountryEnum:
      enum:
      - AF
      - AX
      - AL
      - DZ
      - AS
      - AD
      - AO
      - AI
      - AQ
      - AG
      - AR
     ....

Any ideas?