$ git clone -n https://gitee.com/mgb01105731/iperf3.git /var/lib/mock/dist-an23-build-255019-63625/root/chroot_tmpdir/scmroot/iperf3
Cloning into '/var/lib/mock/dist-an23-build-255019-63625/root/chroot_tmpdir/scmroot/iperf3'...
$ git reset --hard origin/a23
HEAD is now at 4d0290f init upstream from version 3.13