$ git clone -n https://src.fedoraproject.org/rpms/nwg-bar.git /var/lib/mock/f41-build-846030-162952/root/chroot_tmpdir/scmroot/nwg-bar
Cloning into '/var/lib/mock/f41-build-846030-162952/root/chroot_tmpdir/scmroot/nwg-bar'...
$ git fetch origin d3c9deab333495b1e9dd9f0da1c1705ed54b3f74:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nwg-bar
 * [new ref]         d3c9deab333495b1e9dd9f0da1c1705ed54b3f74 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d3c9dea Install nwg-bar config