AO3-6087 Stop removing non-printable Unicode characters #4798
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as the first thing in your pull request title (e.g.
AO3-1234 Fix thing
)until they are reviewed and merged before creating new pull requests.
Issue
https://otwarchive.atlassian.net/browse/AO3-6087
Purpose
This will retain non-printable characters entered by the user in various places including the chapter text, comment, etc. They are necessary for representing characters in some languages.
Apparently the special characters caused problems to the parser in the past. While the details are unclear, we tentatively believe that is not the case any more.
Testing Instructions
Try entering text with zero-width joiner, zero-width non-joiner, and word joiner into the main text of a work, or into a comment. They should remain.
References
I believe this will also affect emojis with gender variants (and maybe other variants), as reported in https://old.reddit.com/r/AO3/comments/1cbpoh8/commenting_issue/ .
Credit
Potpotkettle (they/them)