$ git clone -n https://src.fedoraproject.org/rpms/clthreads.git /var/lib/mock/f45-build-4051-330/root/chroot_tmpdir/scmroot/clthreads
Cloning into '/var/lib/mock/f45-build-4051-330/root/chroot_tmpdir/scmroot/clthreads'...
$ git fetch origin a168c3c62af145daf9848206b50376e90435e4e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/clthreads
 * [new ref]         a168c3c62af145daf9848206b50376e90435e4e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a168c3c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild