Search block double-encodes apostrophes in the input value on search results page

[katag9k]

Description

When searching for a term containing an apostrophe (e.g. "ada's"), the search input field on the results page displays ada's instead of ada's. This is because get_search_query() returns a pre-escaped string, and WP_HTML_Tag_Processor::set_attribute() escapes it again, causing double-encoding.

Step-by-step reproduction instructions

1. Add a Search block to any page or template
2. On the frontend, search for a term containing an apostrophe, e.g. ada's
3. On the search results page, observe the search input field displays ada's instead of ada's

Screenshots, screen recording, code snippet

Environment info

The bug exists in the latest trunk. The issue is in packages/block-library/src/search/index.php line 82. The fix is to pass false to get_search_query() so set_attribute() handles escaping:

// Before:
$input->set_attribute( 'value', get_search_query() );

// After:
$input->set_attribute( 'value', get_search_query( false ) );

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

• Yes

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

• Yes

Please confirm which theme type you used for testing.

• Block
• Classic
• Hybrid (e.g. classic with theme.json)
• Not sure

[Mayank-Tripathi32]

Thank you for reporting the issue!

Test Failed ❌ - Couldn't replicate it on 2021 theme.
Enviornment:

• Mac (15.6)
• Chrome (Version 143.0.7499.193 (Official Build) (arm64))
• Gutenberg (trunk)
• 2021 theme.

Test Passed ✅ - Could replicate this on 2025 block theme.

• Mac (15.6)
• Chrome (Version 143.0.7499.193 (Official Build) (arm64))
• Gutenberg (trunk)
• 2025 theme.

I will work on adding PR for the same.