Please add the language code vi-hani and ko-hani to the list of language codes supported for monolingual text values.
*The language code: vi-Hani
*Language name in the language itself or English: English: Vietnamese Chu Nom
*The used script, if not obvious: Hani
*Where and when the language was or is used: Mainly in Vietnam before 20th century
*The Wikidata item id: Q875344
*The language code: ko-Kore
*Language name in the language itself or English: English: Korean Hanja Mixed Script
*The used script, if not obvious: Kore
*Where and when the language was or is used: Korea before WWII
*The Wikidata item id: Q711797
Usage example: I was going to add entry for both of them in wikidata item Q1 but get rejected.
Note that according to https://www.wikidata.org/wiki/Help:Monolingual_text_languages , although the policy was not finished yet, it was stated that a language code does not have to fulfill requirement of the language proposal policy for new wikis, and in general a code would be acceptable as long as the language code is valid.
By the way the application form for new monolingual code on this template is greatly different from the form on wikidata. Which of these fields are actually needed?