$ git clone -n https://src.fedoraproject.org/rpms/iperf.git /var/lib/mock/f33-build-406804-62675/root/chroot_tmpdir/scmroot/iperf
Cloning into '/var/lib/mock/f33-build-406804-62675/root/chroot_tmpdir/scmroot/iperf'...
$ git reset --hard 3c6695b6babaff695f2177ca71671db4449dbdc5
HEAD is now at 3c6695b Disable LTO (#1910200)