Posts tagged with complex Emoji can't be found

[edent]

If a post is tagged with 🏳️‍⚧️ - it cannot be found at tag/%F0%9F%8F%B3%EF%B8%8F%E2%80%8D%E2%9A%A7%EF%B8%8F

• I have several blog posts which have a tag of "🏳️‍⚧️"
• The tag shows on the posts - for example ​https://shkspr.mobi/blog/2023/04/some-thoughts-on-hacking-the-cis-tem/
• If I visit the tag page, I'm told that no posts exist with that tag - for example ​https://shkspr.mobi/blog/tag/🏳️‍⚧️/

Some simpler emoji *do* work as tags. For example ​https://shkspr.mobi/blog/tag/😊/

Moderately complex flag emoji also work. For example ​https://shkspr.mobi/blog/tag/🏴‍☠️/ and ​https://shkspr.mobi/blog/tag/%f0%9f%8f%b3%ef%b8%8f%f0%9f%8c%88/

My backend database has an encoding of utf8mb4_unicode_520_ci (10.6.20-MariaDB).

[sainathpoojary]

Hi @edent! Thanks for bringing up the issue. I tried to reproduce the issue with emoji tags but wasn't able to replicate the problem you're experiencing.

I tested the following:

1. Created test posts with emoji tags including 🏳️‍⚧️, 😊, and 🏴‍☠️
2. Verified the tags appear correctly on posts
3. Accessed the tag archive URLs:

/tag/🏳️‍⚧️
/tag/😊
/tag/🏴‍☠️

All URLs worked and showed the tagged posts correctly. Could you share more information like

1. Are you using any plugins that might affect URL handling or taxonomies?
2. Does this happen with a default theme like Twenty Twenty-Four?

Additional information would help narrow down what might be different in your setup causing this issue.

Video: ​https://rioudcpuyg.ufs.sh/f/PL8E4NiPUWyO7432pdv9AWOSNT8iuxYqzcvCVIEKbQmF3njP

Environment

• WordPress: 6.8-alpha-59274-src
• PHP: 8.2.27
• Server: nginx/1.27.3
• Database: mysqli (Server: 8.4.4 / Client: mysqlnd 8.2.27)
• Browser: Chrome 132.0.0.0
• OS: macOS
• Theme: Twenty Twenty-Five 1.0
• MU Plugins: None activated
• Plugins: Test Reports 1.2.0