$ git clone -n https://src.fedoraproject.org/rpms/dmtx-utils.git /var/lib/mock/f41-build-side-1-3140022-39872/root/chroot_tmpdir/scmroot/dmtx-utils
Cloning into '/var/lib/mock/f41-build-side-1-3140022-39872/root/chroot_tmpdir/scmroot/dmtx-utils'...
$ git fetch origin 8494fa758b71d7654ed4e296591999d39ac5c3d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dmtx-utils
 * [new ref]         8494fa758b71d7654ed4e296591999d39ac5c3d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8494fa7 convert license to SPDX