$ git clone -n https://gitee.com/wenyuzifang/slirp4netns.git /var/lib/mock/dist-an23-build-466552-73981/root/chroot_tmpdir/scmroot/slirp4netns
Cloning into '/var/lib/mock/dist-an23-build-466552-73981/root/chroot_tmpdir/scmroot/slirp4netns'...
$ git fetch origin c7b1f4aafcb70025c28c9644248ff7e8ced3515c:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/slirp4netns
 * [new ref]         c7b1f4aafcb70025c28c9644248ff7e8ced3515c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c7b1f4a Update code from upstream