$ git clone -n https://gitee.com/wency_cn/libnbd_1770733701.git /var/lib/mock/dist-an23-build-513163-75099/root/chroot_tmpdir/scmroot/libnbd_1770733701
Cloning into '/var/lib/mock/dist-an23-build-513163-75099/root/chroot_tmpdir/scmroot/libnbd_1770733701'...
$ git fetch origin 33f7c5f303b3a29197f364aaeefe675dc7046f6c:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/libnbd_1770733701
 * [new ref]         33f7c5f303b3a29197f364aaeefe675dc7046f6c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 33f7c5f Update code from upstream