$ git clone -n https://gitee.com/lizhao2025/libpaper.git /var/lib/mock/dist-an23-build-500170-74764/root/chroot_tmpdir/scmroot/libpaper
Cloning into '/var/lib/mock/dist-an23-build-500170-74764/root/chroot_tmpdir/scmroot/libpaper'...
$ git fetch origin 234e0262cafe50d85b96ad156a7d410164ed1e94:KOJI_FETCH_HEAD
From https://gitee.com/lizhao2025/libpaper
 * [new ref]         234e0262cafe50d85b96ad156a7d410164ed1e94 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 234e026 Update code from upstream