$ git clone -n https://src.fedoraproject.org/rpms/perl-Params-Util.git /var/lib/mock/f45-build-25659-612/root/chroot_tmpdir/scmroot/perl-Params-Util
Cloning into '/var/lib/mock/f45-build-25659-612/root/chroot_tmpdir/scmroot/perl-Params-Util'...
$ git fetch origin 4c6fec1e940c0d232c5a858f3e26579bb87bb39e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Params-Util
 * [new ref]         4c6fec1e940c0d232c5a858f3e26579bb87bb39e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c6fec1 Perl 5.44 rebuild