There was a question on SciFi.SE where I wanted to mention the Japanese ronin, and to make sure people knew what I was talking about, I also wanted to link to the appropriate Wikipedia page.
Wikipedia, being what it is, has the page for ronin at the pretentiously diacritically-laden Rōnin. However, Stack Exchange does not share Wikipedia's pedantic use of diacritics and does the following:
- In questions, it completely ignores the URL and acts like the link markdown isn't there
- In comments, it strips out the ō and replaces it with a gaping void, sending people to the page for Rnin.
The question problem has come up before for other, similar URL detection issues, but the comment problem is, I believe, a different (and potentially more serious) issue as it presents the wrong URL instead of just ignoring it entirely.
Can the URL filter be adjusted to allow for valid Unicode characters, either by being left alone or URL encoded as per RFC 3986?