$ git clone -n https://src.fedoraproject.org/rpms/freeradius-client.git /var/lib/mock/f41-build-1034949-18652/root/chroot_tmpdir/scmroot/freeradius-client
Cloning into '/var/lib/mock/f41-build-1034949-18652/root/chroot_tmpdir/scmroot/freeradius-client'...
$ git fetch origin 1a4131f3324a63523d7908a1a2f429927ea0afc3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/freeradius-client
 * [new ref]         1a4131f3324a63523d7908a1a2f429927ea0afc3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1a4131f Eliminate use of obsolete %patchN syntax (#2283636)