$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Routine.git /var/lib/mock/f41-build-side-1-2774789-32365/root/chroot_tmpdir/scmroot/perl-Test-Routine
Cloning into '/var/lib/mock/f41-build-side-1-2774789-32365/root/chroot_tmpdir/scmroot/perl-Test-Routine'...
$ git fetch origin b30aa1e7e804bce731531953fc0efafc9346949f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Routine
 * [new ref]         b30aa1e7e804bce731531953fc0efafc9346949f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b30aa1e convert GPL+ or Artistic license to SPDX