$ git clone -n https://src.fedoraproject.org/forks/romaingeissler1a/rpms/python-ipyparallel.git /var/lib/mock/f43-build-60978616-6587190/root/chroot_tmpdir/scmroot/python-ipyparallel
Cloning into '/var/lib/mock/f43-build-60978616-6587190/root/chroot_tmpdir/scmroot/python-ipyparallel'...
$ git fetch origin e8db0a62cd231d6b8148a92c9c7dc6332e7600c6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/forks/romaingeissler1a/rpms/python-ipyparallel
 * [new ref]         e8db0a62cd231d6b8148a92c9c7dc6332e7600c6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8db0a6 Generate build requires instead of hardcoding them.