Added a test to show that #8063 doesn't seem to be an issue any longer.

>>> list(User.objects.extra(select={"alpha": "%s"}, select_params=(-6,)).filter(id=u.id).values_list('id', flat=True)) == [u.id]

True

# Regression test for #8063: limiting a query shouldn't discard any extra()

# bits.

>>> qs = User.objects.all().extra(where=['id=%s'], params=[u.id])

>>> qs

[<User: fred>]

>>> qs[:1]

[<User: fred>]

"""}