$ git clone -n https://src.fedoraproject.org/rpms/ark.git /var/lib/mock/f40-build-2117425-50724/root/chroot_tmpdir/scmroot/ark
Cloning into '/var/lib/mock/f40-build-2117425-50724/root/chroot_tmpdir/scmroot/ark'...
$ git fetch origin 442b5743439521f7b555300fcbb271d08d34ed40:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ark
 * [new ref]         442b5743439521f7b555300fcbb271d08d34ed40 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 442b574 fix: add upstream patch