$ git clone -n https://pagure.io/fedora-kiwi-descriptions.git /var/lib/mock/eln-kiwi-build-59206581-6571873/root/chroot_tmpdir/fedora-kiwi-descriptions
Cloning into '/var/lib/mock/eln-kiwi-build-59206581-6571873/root/chroot_tmpdir/fedora-kiwi-descriptions'...
$ git fetch origin 66b87054e8155204fcaae4196f88592a07ee9457:KOJI_FETCH_HEAD
From https://pagure.io/fedora-kiwi-descriptions
 * [new ref]         66b87054e8155204fcaae4196f88592a07ee9457 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 66b8705 grub2: Enable `bls` for all non-live images