$ git clone -n https://gitee.com/src-opencloudos-rpms/libvncserver.git /var/lib/mock/dist-oc9-build-137256-79529/root/chroot_tmpdir/scmroot/libvncserver
Cloning into '/var/lib/mock/dist-oc9-build-137256-79529/root/chroot_tmpdir/scmroot/libvncserver'...
$ git fetch origin 8d5d56de0d1db4431634b337323790083ea15620:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libvncserver
 * [new ref]         8d5d56de0d1db4431634b337323790083ea15620 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d5d56d import libvncserver-0.9.13-8.tl4