変更できないカテゴリがあるのはなぜですか

[Benjamin_D (Benjamin Decotte)]

@pfaffman

これはバグのようですね。編集できないようにカテゴリを設定することはできないはずです。

その通りです

Allow or not accented characters in category slug according to "slug generation method" setting

I think there’s definitely room to improve this in some way. I tried it out and it feels pretty jarring to innocently enter a slug with an accented character, save, and get hit with a broken page you can’t fix until you figure out that setting exists.