$ git clone -n https://src.fedoraproject.org/rpms/common-lisp-controller.git /var/lib/mock/f45-build-6846-352/root/chroot_tmpdir/scmroot/common-lisp-controller
Cloning into '/var/lib/mock/f45-build-6846-352/root/chroot_tmpdir/scmroot/common-lisp-controller'...
$ git fetch origin d75f8453e30dddb119ef8a08edb8da7fa534b98a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/common-lisp-controller
 * [new ref]         d75f8453e30dddb119ef8a08edb8da7fa534b98a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d75f845 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild