Backport #28267 by @earl-warren
- Say to the binding middleware which locale should be used for the
required error.
- Resolves https://codeberg.org/forgejo/forgejo/issues/1683
(cherry picked from commit 5a2d7966127b5639332038e9925d858ab54fc360)
Co-authored-by: Earl Warren <109468362+earl-warren@users.noreply.github.com>
Co-authored-by: Gusted <postmaster@gusted.xyz>