Explicitly register comment meta in unit tests and revert the action hook back to init

Author: t-hamano

src/wp-includes/comment.php

@@ -4135,4 +4135,3 @@ function wp_create_initial_comment_meta() {
 		)
 	);
 }
-add_action( 'rest_api_init', 'wp_create_initial_comment_meta' );

src/wp-includes/default-filters.php

@@ -151,6 +151,7 @@
 add_action( 'added_comment_meta', 'wp_cache_set_comments_last_changed' );
 add_action( 'updated_comment_meta', 'wp_cache_set_comments_last_changed' );
 add_action( 'deleted_comment_meta', 'wp_cache_set_comments_last_changed' );
+add_action( 'init', 'wp_create_initial_comment_meta' );
 
 // Places to balance tags on input.
 foreach ( array( 'content_save_pre', 'excerpt_save_pre', 'comment_save_pre', 'pre_comment_content' ) as $filter ) {

tests/phpunit/tests/rest-api/rest-comments-controller.php

@@ -170,6 +170,8 @@ public static function wpTearDownAfterClass() {
 	public function set_up() {
 		parent::set_up();
 		$this->endpoint = new WP_REST_Comments_Controller();
+		wp_create_initial_comment_meta();
+
 		if ( is_multisite() ) {
 			update_site_option( 'site_admins', array( 'superadmin' ) );
 		}