$ git clone -n https://src.fedoraproject.org/rpms/perl-XRD-Parser.git /var/lib/mock/f41-build-side-1-2774822-32365/root/chroot_tmpdir/scmroot/perl-XRD-Parser
Cloning into '/var/lib/mock/f41-build-side-1-2774822-32365/root/chroot_tmpdir/scmroot/perl-XRD-Parser'...
$ git fetch origin 81ee3b65c647e65b34bb132aa748e0ee7b98f9cd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XRD-Parser
 * [new ref]         81ee3b65c647e65b34bb132aa748e0ee7b98f9cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 81ee3b6 convert GPL+ or Artistic license to SPDX