Exception: Cannot get fields from a polymorphic serializer given a queryset

[BillBrower]

I'm sure I'm just doing something wrong but the documentation on working with polymorphic resources is pretty sparse so I'm not sure what to change. I have a polymorphic model Parent with two instance types and when I try to retrieve them using DRF's ModelViewSet I get this error: Exception: Cannot get fields from a polymorphic serializer given a queryset.

Here are my views:

from rest_framework import permissions, viewsets
from rest_framework.authentication import TokenAuthentication
from .serializers import ParentSerializer

class ParentViewSet(viewsets.ModelViewSet):
    authentication_classes = (TokenAuthentication,)
    included = []
    pagination_class = None
    permission_classes = (permissions.IsAuthenticated,)
    serializer_class = ParentSerializer

And here is my serializer:

class ChildOneSerializer(serializers.ModelSerializer):
    class Meta:
        model = ChildOne
    .
    .
    .

class ChildTwoSerializer(serializers.ModelSerializer):
    class Meta:
        model = ChildTwo
    .
    .
    .

class ParentSerializer(PolymorphicModelSerializer):
    polymorphic_serializers = [ChildOneSerializer, ChildTwoSerializer]

    class Meta:
        model = Parent

I have my resource_names defined on my models. I've tried passing a list instead of a queryset and that works for an empty response ([]) but I run into issue #400 for non-empty responses. What should I be passing to my serializer?

[mblayman]

Is this fixed by #402 being merged?

[BillBrower]

It does. Thanks for fixing this so quickly!