$ git clone -n https://gitee.com/src-opencloudos-rpms/felix-parent.git /var/lib/mock/dist-oc9-build-49972-14595/root/chroot_tmpdir/scmroot/felix-parent
Cloning into '/var/lib/mock/dist-oc9-build-49972-14595/root/chroot_tmpdir/scmroot/felix-parent'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/felix-parent
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dfbd8c4 import felix-parent-7-2.tl4