$ git clone -n https://gitee.com/src-opencloudos-rpms/ppp.git /var/lib/mock/dist-oc9-la64-build-133918-78838/root/chroot_tmpdir/scmroot/ppp
Cloning into '/var/lib/mock/dist-oc9-la64-build-133918-78838/root/chroot_tmpdir/scmroot/ppp'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ppp
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c797fa import ppp-2.5.0-5.tl4