wp-includes/blocks/navigation.php:265Gets the inner blocks for the navigation block from the fallback.
$attributesarrayWP_Block_List private static function get_inner_blocks_from_fallback( $attributes ) { $fallback_blocks = block_core_navigation_get_fallback_blocks(); // Fallback my have been filtered so do basic test for validity. if ( empty( $fallback_blocks ) || ! is_array( $fallback_blocks ) ) { return new WP_Block_List( array(), $attributes ); } return new WP_Block_List( $fallback_blocks, $attributes ); }Introduced in 6.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/blocks/navigation.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.