Deref list custom id fix

mongoengine/dereference.py

@@ -166,7 +166,7 @@ class DeReference(object):
             else:
                 data[k] = v
 
-            if k in self.object_map:
+            if k in self.object_map and not is_list:
                 data[k] = self.object_map[k]
             elif hasattr(v, '_fields'):
                 for field_name, field in v._fields.iteritems():

mongoengine/queryset.py

@@ -813,11 +813,10 @@ class QuerySet(object):
             have to create a new document.
             Passes any write_options onto :meth:`~mongoengine.Document.save`
 
-        .. versionadded:: 0.3
-
         :param auto_save: if the object is to be saved automatically if not found.
 
-        .. versionadded:: 0.6
+        .. versionadded:: 0.3
+        .. versionupdated:: 0.6 - added `auto_save`
         """
         defaults = query.get('defaults', {})
         if 'defaults' in query: