The shared base/ index already ships pkglist.gostcrypto/checkinstall, so apt
sees these components but their RPMS.* payload was never mirrored, causing 404
on every package (e.g. apt-conf-branch-gostcrypto). Mirror the payload too,
skipping branch/arch where the component is absent upstream.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>