$ git clone -n https://gitee.com/opencloudos-stream/libss7.git /var/lib/mock/dist-oc9-epol-build-83454-57176/root/chroot_tmpdir/scmroot/libss7
Cloning into '/var/lib/mock/dist-oc9-epol-build-83454-57176/root/chroot_tmpdir/scmroot/libss7'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libss7
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ee480b9 package init