Fixed order_by chaining issue (#265)

docs/changelog.rst

@@ -4,6 +4,7 @@ Changelog
 
 Changes in 0.7.10
 =================
+- Fixed order_by chaining issue (#265)
 - Added dereference support for tuples (#250)
 - Resolve field name to db field name when using distinct(#260, #264, #269)
 - Added kwargs to doc.save to help interop with django (#223, #270)

mongoengine/queryset.py

@@ -1321,7 +1321,8 @@ class QuerySet(object):
             key_list.append((key, direction))
 
         self._ordering = key_list
-
+        if self._cursor_obj:
+            self._cursor_obj.sort(key_list)
         return self
 
     def explain(self, format=False):