$ git clone -n https://gitee.com/src-opencloudos-rpms/libproxy.git /var/lib/mock/dist-oc9-build-70463-47434/root/chroot_tmpdir/scmroot/libproxy
Cloning into '/var/lib/mock/dist-oc9-build-70463-47434/root/chroot_tmpdir/scmroot/libproxy'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libproxy
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 146bcb5 import libproxy-0.5.3-4.tl4