Performance: Disable lazy term meta loading render_block_core_templat…

…e_part. (#48000)

* Disable lazy term meta loading render_block_core_template_part.

* Add comment.

lib/compat/wordpress-6.1/block-template-utils.php

@@ -80,7 +80,7 @@ function gutenberg_get_block_templates( $query = array(), $template_type = 'wp_t
 		'post_type'           => $template_type,
 		'posts_per_page'      => -1,
 		'no_found_rows'       => true,
-		'lazy_load_term_meta' => false,
+		'lazy_load_term_meta' => false,  // Do not lazy load term meta, as template post types only have one term.
 		'tax_query'           => array(
 			array(
 				'taxonomy' => 'wp_theme',

packages/block-library/src/template-part/index.php

@@ -27,18 +27,19 @@ function render_block_core_template_part( $attributes ) {
 		$template_part_id    = $attributes['theme'] . '//' . $attributes['slug'];
 		$template_part_query = new WP_Query(
 			array(
-				'post_type'      => 'wp_template_part',
-				'post_status'    => 'publish',
-				'post_name__in'  => array( $attributes['slug'] ),
-				'tax_query'      => array(
+				'post_type'           => 'wp_template_part',
+				'post_status'         => 'publish',
+				'post_name__in'       => array( $attributes['slug'] ),
+				'tax_query'           => array(
 					array(
 						'taxonomy' => 'wp_theme',
 						'field'    => 'name',
 						'terms'    => $attributes['theme'],
 					),
 				),
-				'posts_per_page' => 1,
-				'no_found_rows'  => true,
+				'posts_per_page'      => 1,
+				'no_found_rows'       => true,
+				'lazy_load_term_meta' => false, // Do not lazy load term meta, as template parts only have one term.
 			)
 		);
 		$template_part_post  = $template_part_query->have_posts() ? $template_part_query->next_post() : null;