$ git clone -n https://gitee.com/src-opencloudos-rpms/gtk-vnc.git /var/lib/mock/dist-oc9-build-62756-16463/root/chroot_tmpdir/scmroot/gtk-vnc
Cloning into '/var/lib/mock/dist-oc9-build-62756-16463/root/chroot_tmpdir/scmroot/gtk-vnc'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gtk-vnc
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b959643 import gtk-vnc-1.3.1-2.tl4