Django Ninja fails with ForeignObject fields: AttributeError 'ForeignObjectRel' object has no attribute 'help_text'

AttributeError: 'ForeignObjectRel' object has no attribute 'help_text'

from django.db import models

class Order(models.Model):
    # ... (fields can be omitted for brevity)
    pass

class Product(models.Model):
    # ... (fields can be omitted for brevity)
    pass

class OrderDetail(models.Model):
    order = models.ForeignObject(
        Order,
        on_delete=models.CASCADE,
        from_fields=["order_id"],
        to_fields=["id"],
        related_name="details"
    )
    product = models.ForeignKey(Product, on_delete=models.CASCADE)
    quantity = models.PositiveIntegerField()

from ninja import ModelSchema, NinjaAPI
from .models import Order

api = NinjaAPI()


class OrderSchema(ModelSchema):
    class Meta:
        model = Order
        fields = "__all__"


@api.get("/orders", response=list[OrderSchema])
def list_orders(request):
    return Order.objects.all()