$ git clone -n https://gitee.com/opencloudos-stream/iperf3.git /var/lib/mock/dist-ocs23-base-build-303269-30494/root/chroot_tmpdir/scmroot/iperf3
Cloning into '/var/lib/mock/dist-ocs23-base-build-303269-30494/root/chroot_tmpdir/scmroot/iperf3'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/iperf3
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0cb816f !3 【自动升级】iperf3 3.18 Merge pull request !3 from ocs-bot/master