Seems that I found a solution on this thread https://github.com/vercel/next.js/discussions/43890
It fix the issue when creating a new document. But still got a problem with revalidate unpublished document like mentionned in this thread : https://community.prismic.io/t/revalidate-unpublished-documents-on-isr/14763
Will try to do a different webhook fired when unpublished document like suggested 