$ git clone -n https://src.fedoraproject.org/rpms/orthorobot.git /var/lib/mock/f45-build-21188-580/root/chroot_tmpdir/scmroot/orthorobot
Cloning into '/var/lib/mock/f45-build-21188-580/root/chroot_tmpdir/scmroot/orthorobot'...
$ git fetch origin b8f352d6e96e32de55b5cb59b5c37d5caca56e35:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/orthorobot
 * [new ref]         b8f352d6e96e32de55b5cb59b5c37d5caca56e35 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b8f352d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild