move to correct release (this fix was included in 1.3.9, not 1.3.8)

CHANGELOG.rst

@@ -38,6 +38,8 @@ Fixed
 -----
 - Fixed the hanging HTTP call with ``ner_duckling_http`` pipeline.
 - Fixed text processing of ``intent`` attribute inside ``CountVectorFeaturizer``.
+- Fixed ``argument of type 'NoneType' is not iterable`` when using ``rasa shell``,
+  ``rasa interactive`` / ``rasa run``
 
 [1.3.8] - 2019-10-08
 ^^^^^^^^^^^^^^^^^^^^
@@ -52,8 +54,6 @@ Fixed
 - Fixed error ``Object of type 'MaxHistoryTrackerFeaturizer' is not JSON serializable``
   when running ``rasa train core``
 - Default channel ``send_`` methods no longer support kwargs as they caused issues in incompatible channels
-- Fixed ``argument of type 'NoneType' is not iterable`` when using ``rasa shell``,
-  ``rasa interactive`` / ``rasa run``
 
 [1.3.7] - 2019-09-27
 ^^^^^^^^^^^^^^^^^^^^