$ git clone -n https://gitee.com/opencloudos-stream/libs3.git /var/lib/mock/dist-oc9-epol-build-76364-52492/root/chroot_tmpdir/scmroot/libs3
Cloning into '/var/lib/mock/dist-oc9-epol-build-76364-52492/root/chroot_tmpdir/scmroot/libs3'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libs3
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce701f5 package init