$ git clone -n https://gitee.com/wency_cn/libdvdnav.git /var/lib/mock/dist-an23-build-502310-74802/root/chroot_tmpdir/scmroot/libdvdnav
Cloning into '/var/lib/mock/dist-an23-build-502310-74802/root/chroot_tmpdir/scmroot/libdvdnav'...
$ git fetch origin 7acf835e00edf4feb5265f031375b7817cbfd5b4:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/libdvdnav
 * [new ref]         7acf835e00edf4feb5265f031375b7817cbfd5b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7acf835 Update code from upstream