$ git clone -n https://gitee.com/src-opencloudos-rpms/libcdr.git /var/lib/mock/dist-oc9-build-50363-14595/root/chroot_tmpdir/scmroot/libcdr
Cloning into '/var/lib/mock/dist-oc9-build-50363-14595/root/chroot_tmpdir/scmroot/libcdr'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libcdr
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e82b247 import libcdr-0.1.7-3.tl4