$ git clone -n https://src.fedoraproject.org/rpms/perl-MooseX-AttributeHelpers.git /var/lib/mock/f41-build-side-1-2788357-32630/root/chroot_tmpdir/scmroot/perl-MooseX-AttributeHelpers
Cloning into '/var/lib/mock/f41-build-side-1-2788357-32630/root/chroot_tmpdir/scmroot/perl-MooseX-AttributeHelpers'...
$ git fetch origin a4ab4e6423c6b212d34572075ec1b7d88baeddf6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MooseX-AttributeHelpers
 * [new ref]         a4ab4e6423c6b212d34572075ec1b7d88baeddf6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a4ab4e6 Add rpmlintrc