Similarly to how ONE_OF was fixed in c0599ad, we also need to fix NUMERIC.
Otherwise we sometimes see something like this in hii list-questions:
Question {
name: "PXE boot wait time",
answer: "Error: failed to fill whole buffer",
options: [],
help: "Wait time in seconds to press ESC key to abort the PXE boot. Use either +/- or numeric keys to set the value.",
}