$ git clone -n https://src.fedoraproject.org/rpms/perl-Compress-LZF.git /var/lib/mock/f45-build-22428-591/root/chroot_tmpdir/scmroot/perl-Compress-LZF
Cloning into '/var/lib/mock/f45-build-22428-591/root/chroot_tmpdir/scmroot/perl-Compress-LZF'...
$ git fetch origin 66752783474a5b3c5026221fe238a450a60668ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Compress-LZF
 * [new ref]         66752783474a5b3c5026221fe238a450a60668ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6675278 Perl 5.44 rebuild