$ git clone -n https://src.fedoraproject.org/rpms/dl-fedora.git /var/lib/mock/f41-build-side-1-2817267-32985/root/chroot_tmpdir/scmroot/dl-fedora
Cloning into '/var/lib/mock/f41-build-side-1-2817267-32985/root/chroot_tmpdir/scmroot/dl-fedora'...
$ git fetch origin 1706abdbe1ea4af3272591e7b98d86b5c0b35533:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dl-fedora
 * [new ref]         1706abdbe1ea4af3272591e7b98d86b5c0b35533 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1706abd https://hackage.haskell.org/package/dl-fedora-1.2/changelog