Using multiple relation in filtering

[Mohsen Tamiz]

I asked this question <https://stackoverflow.com/q/50001616/2335245> in
stackoverflow few days ago, but currently I could not find the solution for
my problem.
I have 3 different classes

#models.py
class Person(models.Model):
first_name = models.CharField(max_length=20)
last_name = models.CharField(max_length=20)

class PersonSession(models.Model):
start_time = models.DateTimeField(auto_now_add=True)
end_time = models.DateTimeField(null=True,
blank=True)
person = models.ForeignKey(Person, related_name='sessions')

class Billing(models.Model):
DEBT = 'DE'
BALANCED = 'BA'
CREDIT = 'CR'

session = models.OneToOneField(PersonSession,
blank=False,
null=False,
related_name='billing')
STATUS = ((BALANCED, 'Balanced'),
(DEBT, 'Debt'),
(CREDIT, 'Credit'))

status = models.CharField(max_length=2,
choices=STATUS,
blank=False,
default=BALANCED
)

#views.py
class PersonFilter(django_filters.FilterSet):
start_time =
django_filters.DateFromToRangeFilter(name='sessions__start_time',
distinct=True)
billing_status =
django_filters.ChoiceFilter(name='sessions__billing__status',
choices=Billing.STATUS,
distinct=True)

class Meta:
model = Person
fields = ('first_name', 'last_name')

class PersonList(generics.ListCreateAPIView):
queryset = Person.objects.all()
serializer_class = PersonSerializer
filter_backends =
(django_filters.rest_framework.DjangoFilterBackend)
filter_class = PersonFilter

Using this models and views I assume that url like this:
api/persons?start_time_0=2018-03-20&start_time_1=2018-03-23&billing_status=DE
must give me all persons that has session started between two times also
they have DE status, but what I give is all persons that has at least one
DE billing status independent from its start_time and persons that have
start_time between time defined independent from its billing status, In
other words I assume that the conditions would be applied as AND condition
but it seems that they apply like OR condition. In the question in
stackoverflow I have writtern an example to show my problem more clear.

How could I get the correct answer as I expected?