fdo#81357 no fallback for special codes without country

Thanks to Justin Luth for the hint.

Change-Id: I97bde18814368e589e2a1c275457489a0d7392d4
(cherry picked from commit 3ff2e4dc1d0ba922e06f0d5c90c85fee33623784)
Reviewed-on: https://gerrit.libreoffice.org/11472
Reviewed-by: Matúš Kukan <matus.kukan@collabora.com>
Tested-by: Matúš Kukan <matus.kukan@collabora.com>