tags is not working with Vietnamese characters

[haingdc]

Describe the bug
Open the tags routes which are Vietnamese words fall into 404 page

To Reproduce
Steps to reproduce the behavior:

1. Create an blog post in data folder such as data/blog/test.mdx
2. Add tags for example: tags: ['hành trình']
3. Build and deploy nextjs
4. Go to the site: http://personal-site-example.com/tags/hành-trình
5. It displays 404 page

Expected behavior
It is expected to allow Vietname tags

Reason: because support Chinese by encodeURL that I found in commit before

tailwind-nextjs-starter-blog/app/tags/[tag]/page.tsx

Line 29 in 4d212bd

tag: encodeURI(tag),

[timlrx]

I tried with the example and it works for me

[haingdc]

It isn't in my side. Before It happened from forked source. Now I verify from this source and make sure that it doesn't work.
So weird that It'll fine if you build and serve in localhost.
The issue raises when it's deployed to Github pages. The same steps that I described above