title: "No results found" on Django Haystack ElasticSearch
body: <pre><code>Failed to query Elasticsearch using '*:*': TransportError(400,u'parsing_exception', u'no [query] registered for [filtered]')
  Traceback (most recent call last): File "C:\Python27\lib\site-packages\haystack\backends\elasticsearch_backend.py", line 524, in search
  _source=True)
  File "C:\Python27\lib\site-packages\elasticsearch\client\utils.py", line 71, in _wrapped
  return func(*args, params=params, **kwargs)
  File "C:\Python27\lib\site-packages\elasticsearch\client\__init__.py", line 569, in search
  doc_type, '_search'), params=params, body=body)
  File "C:\Python27\lib\site-packages\elasticsearch\transport.py", line 327, in perform_request
  status, headers, data = connection.perform_request(method, url, params, body, ignore=ignore, timeout=timeout)
  File "C:\Python27\lib\site-packages\elasticsearch\connection\http_urllib3.py", line 124, in perform_request
  self._raise_error(response.status, raw_data)
  File "C:\Python27\lib\site-packages\elasticsearch\connection\base.py", line 122, in _raise_error
  raise HTTP_EXCEPTIONS.get(status_code, TransportError)(status_code, error_message, additional_info)
  RequestError: TransportError(400, u'parsing_exception', u'no [query] registered for [filtered]')
  </code></pre>
  
  <p>Have been getting "No results found" on the default search form from haystack documentation. When I try to call count on searchqueryset , I get this error.</p>