To build a new Heketi RPM you will need to also create a separate depenedency file.
To create the dependency file, make sure to have Go installed. Then do the following:

Run:
    $ ./create_deps.sh <shortcommit hash>

This will create a file called heketi and heketi-godeps-${HEKETI_COMMITR}.tar.gz 
which need to be added to both the spec file and to 'fedpkg new-sources...'