$ git clone -n https://src.fedoraproject.org/rpms/git-repair.git /var/lib/mock/f45-build-11077-426/root/chroot_tmpdir/scmroot/git-repair
Cloning into '/var/lib/mock/f45-build-11077-426/root/chroot_tmpdir/scmroot/git-repair'...
$ git fetch origin 7470de7a959286caeb568e5634954cdea756dc12:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/git-repair
 * [new ref]         7470de7a959286caeb568e5634954cdea756dc12 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7470de7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild