The browser won't jump to zh-classical.m.wikipedia.org automatically when accessing zh-classical.wikipedia.org via mobile devices. But other sites will redirect to mobile versions.
|operations/puppet : production||varnish mobile redirects: allow for dashes in first label|
I think this is because our mobile-redirect logic doesn't support dashes, but probably should due to these cases? Patch above proposed, if it makes logical sense to support mobile-redirects on "language" subdomains containing dashes (\w is only alphanumerics and underscore).