$ git clone -n https://gitee.com/src-opencloudos-rpms/mtools.git /var/lib/mock/dist-oc9-build-64139-16463/root/chroot_tmpdir/scmroot/mtools
Cloning into '/var/lib/mock/dist-oc9-build-64139-16463/root/chroot_tmpdir/scmroot/mtools'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mtools
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c90cabe import mtools-4.0.43-2.tl4