$ git clone -n https://src.fedoraproject.org/rpms/frei0r-plugins.git /var/lib/mock/f45-build-9274-400/root/chroot_tmpdir/scmroot/frei0r-plugins
Cloning into '/var/lib/mock/f45-build-9274-400/root/chroot_tmpdir/scmroot/frei0r-plugins'...
$ git fetch origin 7c9fffdbd40602c9d22811a7d16b733d3ce91de4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/frei0r-plugins
 * [new ref]         7c9fffdbd40602c9d22811a7d16b733d3ce91de4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c9fffd Add missing BR libglvnd-devel