$ git clone -n https://gitee.com/wency_cn/libnbd_1770725885.git /var/lib/mock/dist-an23-build-513078-75099/root/chroot_tmpdir/scmroot/libnbd_1770725885
Cloning into '/var/lib/mock/dist-an23-build-513078-75099/root/chroot_tmpdir/scmroot/libnbd_1770725885'...
$ git fetch origin 762ceed1e115bc449016c818f796a50a784f189d:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/libnbd_1770725885
 * [new ref]         762ceed1e115bc449016c818f796a50a784f189d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 762ceed Update code from upstream