$ git clone -n https://gitee.com/wenyuzifang/m17n-lib.git /var/lib/mock/dist-an23-build-471903-74118/root/chroot_tmpdir/scmroot/m17n-lib
Cloning into '/var/lib/mock/dist-an23-build-471903-74118/root/chroot_tmpdir/scmroot/m17n-lib'...
$ git fetch origin bfa553d203916604d4bbe01f3d29261e62cf78ce:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/m17n-lib
 * [new ref]         bfa553d203916604d4bbe01f3d29261e62cf78ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bfa553d Update code from upstream