$ git clone -n https://src.fedoraproject.org/rpms/mecab-jumandic.git /var/lib/mock/f45-build-18203-511/root/chroot_tmpdir/scmroot/mecab-jumandic
Cloning into '/var/lib/mock/f45-build-18203-511/root/chroot_tmpdir/scmroot/mecab-jumandic'...
$ git fetch origin b488a8fa4c300df11c63db046af37efed2672698:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mecab-jumandic
 * [new ref]         b488a8fa4c300df11c63db046af37efed2672698 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b488a8f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild