$ git clone -n https://src.fedoraproject.org/rpms/rudeconfig.git /var/lib/mock/f45-build-35454-695/root/chroot_tmpdir/scmroot/rudeconfig
Cloning into '/var/lib/mock/f45-build-35454-695/root/chroot_tmpdir/scmroot/rudeconfig'...
$ git fetch origin 52b36e4705fbd76833acc32ce3edf027a7fc5537:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rudeconfig
 * [new ref]         52b36e4705fbd76833acc32ce3edf027a7fc5537 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 52b36e4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild