Turns out this was a one-line fix for each affected field (change the binding from `ValidUrl` to `ValidSiteUrl`), but the tests are rather verbose. The tests are, however, each a simple flow of Create Thing > Try HTTP Website > Try Different Website (notice failure) > Try Different Website With New Config (notice success). I wrote this PR by adding failing tests first, then making the change, for each affected field.
Not sure if this should be "feat:" or "fix:" tbh. I figured "fix:" for this PR since IMO the expected behavior is for `VALID_SITE_URL_SCHEMES` to apply in each of these cases, not only for user profiles via the UI form. (Later changed to "feat:" at @limiting-factor's suggestion, based on the observation that this change extends documented behavior.)
This PR deals with the server-side validation only. #12991 covers client-side validation (deriving a `pattern` attribute from `VALID_SITE_URL_SCHEMES`, etc.)
Closes#5519
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/12962
Reviewed-by: limiting-factor <limiting-factor@noreply.codeberg.org>
