**Steps to replicate the issue**:
* Go to a sandbox, on a wiki that capitalises initial letters, like Wikipedia.
* Create a link that begins with a long S. `[[ſ]]` or begins with ſ that links to a page (e.g. if there's a page with the pagename `Star`, `[[ſtar]]`)
Background: https://en.wikipedia.org/wiki/Long_s
**What happens?**:
- `ſ` is automatically capitalised within the internal link to //S// (i.e. the standard Latin capital S), in the same way that the lowercase s in `[[star]]` produces a link to `Star`.
- A red link is shown, BUT when clicked on, it functions as a blue link, so `[[ſ]]` takes you to //S// (e.g. https://en.wikipedia.org/wiki/S) , and `[[ſtar]]` takes you to //Star// (e.g. https://en.wikipedia.org/wiki/Star)
**What should have happened instead?**:
- The link should have been blue(?)
- An alternative way of looking at this is that ſ should not be automatically capitalised, but instead be permitted as an initial character. That would enable a redirect to be created at ſ that redirects to https://en.wikipedia.org/wiki/Long_s and that `[[ſtar]]` should make a red link because it does not comply with modern orthographic conventions.
Of these, the alternative does seem to make more sense.
**Does this affect any other characters?**:
An open question. For a similar case, the two lowercase forms of Greek sigma seem to work OK: `[[σ]]` / `[[ς]]`