$ git clone -n http://git.inferitos.ru/rpms/iperf3 /var/lib/mock/inferit-10_0-bootstrap-build-77925-151628/root/chroot_tmpdir/scmroot/iperf3
Cloning into '/var/lib/mock/inferit-10_0-bootstrap-build-77925-151628/root/chroot_tmpdir/scmroot/iperf3'...
$ git fetch origin changed/i10c-beta/iperf3-3.17.1-2.el10:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/iperf3
 * [new tag]         changed/i10c-beta/iperf3-3.17.1-2.el10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 529c1db import iperf3-3.17.1-2.el10