$ git clone -n https://gitee.com/src-opencloudos-rpms/ceph.git /var/lib/mock/dist-oc9-build-72375-47685/root/chroot_tmpdir/scmroot/ceph
Cloning into '/var/lib/mock/dist-oc9-build-72375-47685/root/chroot_tmpdir/scmroot/ceph'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ceph
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9761ab import ceph-18.2.0-6.tl4