Scan bug that caused the scan to be sorted

Author: honzakral

elasticsearch/helpers/__init__.py

@@ -276,8 +276,8 @@ def scan(client, query=None, scroll='5m', raise_on_error=True,
 
  """
  if not preserve_order:
- body = query.copy() if query else {}
- body["sort"] = "_doc"
+ query = query.copy() if query else {}
+ query["sort"] = "_doc"
  # initial search
  resp = client.search(body=query, scroll=scroll, size=size,
  request_timeout=request_timeout, **kwargs)