$ git clone -n https://src.fedoraproject.org/rpms/sac.git /var/lib/mock/f39-build-1520537-35830/root/chroot_tmpdir/scmroot/sac
Cloning into '/var/lib/mock/f39-build-1520537-35830/root/chroot_tmpdir/scmroot/sac'...
$ git fetch origin be4faf3ea7e73a13d0a70d75012fe86ae7fbb117:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sac
 * [new ref]         be4faf3ea7e73a13d0a70d75012fe86ae7fbb117 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at be4faf3 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild