$ git clone -n https://src.fedoraproject.org/rpms/netperf.git /var/lib/mock/f45-build-19589-551/root/chroot_tmpdir/scmroot/netperf
Cloning into '/var/lib/mock/f45-build-19589-551/root/chroot_tmpdir/scmroot/netperf'...
$ git fetch origin e7f423b62fd551a9663f512a95d1e84f98e05742:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/netperf
 * [new ref]         e7f423b62fd551a9663f512a95d1e84f98e05742 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e7f423b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild