$ git clone -n https://gitee.com/src-opencloudos-rpms/mcstrans.git /var/lib/mock/dist-oc9-build-64212-16463/root/chroot_tmpdir/scmroot/mcstrans
Cloning into '/var/lib/mock/dist-oc9-build-64212-16463/root/chroot_tmpdir/scmroot/mcstrans'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/mcstrans
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5ed07d9 import mcstrans-3.5-2.tl4