Version 2017.7.6 is a bugfix release for 2017.7.0.
Prior to version 2017.7.3, keys from pillar includes would be merged on top of the pillar SLS. Since 2017.7.3, the includes are merged together and then the pillar SLS is merged on top of that.
pillar_includes_override_sls option has been added allow
users to switch back to the pre-2017.7.3 behavior.