Fixed up the previous commit

taiga/base/domains/api.py

@@ -7,6 +7,8 @@ from rest_framework.permissions import AllowAny, IsAuthenticated
 from django.http import Http404
 
 from taiga.base.api import ModelCrudViewSet, UpdateModelMixin
+from taiga.base.domains import get_active_domain
+
 from .serializers import DomainSerializer, DomainMemberSerializer
 from .permissions import DomainMembersPermission, DomainPermission
 from .models import DomainMember, Domain