Shortcodes don't work in Hybrid Theme Template Parts (WordPress 6.2-RC2)

[aurooba]

Description

I'm testing in a hybrid theme that declares support for Template Parts. While shortcodes (or blocks that transform shortcodes) work in the Site Editor itself, on the front-end those shortcodes do not get parsed and show up as plain text. I've tested this with the Gravity Forms block, Gravity Forms shortcode, and just a random shortcode providing plugin I found in the plugin repo.

This doesn't seem to be an issue for block themes, the shortcodes work there as expected

I tested with and without the Gutenberg plugin installed, and the result is the same.

Step-by-step reproduction instructions

1. Create a template part in a hybrid theme (a classic theme that declares support for template parts)
2. Try adding a shortcode to a template part
3. See the shortcode plain text on the front end.

Screenshots, screen recording, code snippet

Environment info

=== Environment

• WordPress: 6.2-RC2
• PHP: 8.1.9 (also tested on PHP 7.4.30)
• Server: nginx/1.16.0
• Database: mysqli (Server: 8.0.16 / Client: mysqlnd 8.1.9)
• Browser: Chrome 111.0.0.0 (macOS)
• Theme: hybridtheme-test
• MU-Plugins: None activated
• Plugins:
  • Advanced Custom Fields PRO 6.0.7
  • Gravity Forms 2.7.3
  • Imagify 2.1.1
  • Query Monitor 3.11.1
  • Safe SVG 2.0.3
  • Shortcode For Current Date 2.1.7
  • WordPress Beta Tester 3.3.4

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

No

[Mamaduka]

Hi, @aurooba

The bug needs to be resolved in the WP core, specifically in the block_template_part() function.

Trac Ticket: https://core.trac.wordpress.org/ticket/56780.

[aurooba]

Thanks @Mamaduka. I did a search there and didn't find anything (and also..trac is just unfriendly) I appreciate the direct link!