$ git clone -n https://src.fedoraproject.org/rpms/fprintd.git /var/lib/mock/f45-build-9232-400/root/chroot_tmpdir/scmroot/fprintd
Cloning into '/var/lib/mock/f45-build-9232-400/root/chroot_tmpdir/scmroot/fprintd'...
$ git fetch origin e72af79b65bfa15c3c20ef07ea6a4feb746e21c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fprintd
 * [new ref]         e72af79b65bfa15c3c20ef07ea6a4feb746e21c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e72af79 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild