Change slug before publish


I want to change slug before publish.
The current writefreely convert h1 header(title) to the slug.
However, if “Kanji” is included, the slug is similar to the image below:

(I can’t post 2 or more images)


We do in fact need this for several reasons, including (I mentioned this case somewhere here) that if you change the slug after publish, the existing federation for that post will have a broken link using the original slug.