$ git clone -n https://src.fedoraproject.org/rpms/rinutils.git /var/lib/mock/f45-build-34557-688/root/chroot_tmpdir/scmroot/rinutils
Cloning into '/var/lib/mock/f45-build-34557-688/root/chroot_tmpdir/scmroot/rinutils'...
$ git fetch origin 27f4ba7f46b0fdc883badad0798278ec6640e1bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rinutils
 * [new ref]         27f4ba7f46b0fdc883badad0798278ec6640e1bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27f4ba7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild