$ git clone -n https://src.fedoraproject.org/rpms/qhull.git /var/lib/mock/f45-build-33915-675/root/chroot_tmpdir/scmroot/qhull
Cloning into '/var/lib/mock/f45-build-33915-675/root/chroot_tmpdir/scmroot/qhull'...
$ git fetch origin b650f5b051c6d74e288c18efc8e2f69115d86249:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qhull
 * [new ref]         b650f5b051c6d74e288c18efc8e2f69115d86249 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b650f5b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild