$ git clone -n https://src.fedoraproject.org/rpms/eccodes.git /var/lib/mock/f42-build-side-1-3587280-46930/root/chroot_tmpdir/scmroot/eccodes
Cloning into '/var/lib/mock/f42-build-side-1-3587280-46930/root/chroot_tmpdir/scmroot/eccodes'...
$ git fetch origin 9cda33605d783b225aa6ffa4c8077fd38bda6341:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/eccodes
 * [new ref]         9cda33605d783b225aa6ffa4c8077fd38bda6341 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9cda336 update to v2.40.0