$ git clone -n https://src.fedoraproject.org/rpms/adobe-source-han-serif-cn-fonts.git /var/lib/mock/f40-build-2194970-51502/root/chroot_tmpdir/scmroot/adobe-source-han-serif-cn-fonts
Cloning into '/var/lib/mock/f40-build-2194970-51502/root/chroot_tmpdir/scmroot/adobe-source-han-serif-cn-fonts'...
$ git fetch origin f3e9a52f3e9c523db1873735f05c1358717644e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/adobe-source-han-serif-cn-fonts
 * [new ref]         f3e9a52f3e9c523db1873735f05c1358717644e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f3e9a52 Update to 2.002