$ git clone -n https://src.fedoraproject.org/rpms/perl-GIS-Distance-Fast.git /var/lib/mock/f41-build-816531-150225/root/chroot_tmpdir/scmroot/perl-GIS-Distance-Fast
Cloning into '/var/lib/mock/f41-build-816531-150225/root/chroot_tmpdir/scmroot/perl-GIS-Distance-Fast'...
$ git fetch origin d3dbd083b1ab31dedbf13b3732284763d86b1649:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-GIS-Distance-Fast
 * [new ref]         d3dbd083b1ab31dedbf13b3732284763d86b1649 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d3dbd08 Perl 5.40 rebuild