title: django huey is always returning empty queryset while filtering
body: <pre><code>@db_task()
  def test_db_access(tenant_id, batch_obj):
      print('DBAccess')
      print(tenant_id)
      print(batch_obj.id)
      files = File.objects.filter(batch_id=batch_obj.id)
      print(files)
  </code></pre>
  <p>If I run this in django without django-huey, I get a filtered queryset but if I start using django-huey, I'm always getting an empty queryset. Only 'DBAccess' is getting printed and files is always '[]'.</p>
  <p>Do I have to add other settings in settings.py?
  This is my current huey settings</p>
  <pre><code># Huey - Task Queue
  HUEY = {
      'name': 'appname',
      'consumer': {
          'workers': 4, 
          'worker_type': 'thread'
      },
      'immediate': False,
      'connection': {
          'host': RedisConfig.HOST,
          'port': RedisConfig.PORT,
      },
  }
  </code></pre>