only for >= 2015.8
diff --git a/reclass/storage/data.sls b/reclass/storage/data.sls
index 06589b8..eaa82e2 100644
--- a/reclass/storage/data.sls
+++ b/reclass/storage/data.sls
@@ -11,9 +11,9 @@
- rev: {{ storage.data_source.revision|default(storage.data_source.branch) }}
{%- if grains.saltversion >= "2015.8.0" %}
- branch: {{ storage.data_source.branch|default(storage.data_source.revision) }}
+ - update_head: {{ storage.data_source.update_head|default(True) }}
{%- endif %}
- force_reset: {{ storage.data_source.force_reset|default(False) }}
- - update_head: {{ storage.data_source.update_head|default(True) }}
{%- endif %}