**Author:** `li3939108`
**Description:**
zh-hk => zh-hant-hk, zh-tw => zh-hant-tw, zh-cn => zh-hans-cn, zh-mo => zh-hant-mo , zh-sg => zh-hans-sg, zh-my => zh-hans-my
That's what the 6 language tags precisely mean and actually how they are used (for instance, only Hong Kong Chinese in hant script will be store in zh-hk). In fact zh-hk, zh-tw, zh-cn, zh-mo, zh-sg, zh-my are very confusing for some Chinese and quite a few non-Chinese. These 6 language tags also complex the fallback rules(need another fallback table like zh-hk => zh-hant , zh-cn => zh-hans, zh-tw => zh-hant... ). And they are not assigned by IANA but zh-hant-hk, zh-hant-tw ... are. User:Stevenliuyi find this table. http://www.iana.org/assignments/language-subtag-registry
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**Version**: 1.22.0
**Severity**: normal