Modifies the parsed URL after the error check. Avoids a potential `nil`-pointer de-reference if an invalid URL string argument is provided. No current code path triggers the `nil`-pointer de-reference. Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/10204 Reviewed-by: Gusted <gusted@noreply.codeberg.org> Co-authored-by: elle <0xllx0@noreply.codeberg.org> Co-committed-by: elle <0xllx0@noreply.codeberg.org>