(PDB-3873) Accommodate puppet's recent resource tag optimizations
(PDB-3873) Accommodate puppet's recent resource tag optimizations

Accommodate the resource tag optimizations in
d2e6af6cf0d4745cd838184b50fde0f6e970cf7f by setting
:merge_into => nil in the stubs.

Thanks to Patrick Carlisle for suggesting the fix.

rbrw/puppetdb,puppetlabs/puppetdb,rbrw/puppetdb,rbrw/puppetdb,rbrw/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,puppetlabs/puppetdb,rbrw/puppetdb