$ git clone -n https://src.fedoraproject.org/rpms/waifu2x-converter-cpp.git /var/lib/mock/f41-build-side-1-2779000-32451/root/chroot_tmpdir/scmroot/waifu2x-converter-cpp
Cloning into '/var/lib/mock/f41-build-side-1-2779000-32451/root/chroot_tmpdir/scmroot/waifu2x-converter-cpp'...
$ git fetch origin bf3c472199d24ba28d3786636d9af3e5d5a4ca7d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/waifu2x-converter-cpp
 * [new ref]         bf3c472199d24ba28d3786636d9af3e5d5a4ca7d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bf3c472 convert license to SPDX