Address some of things found in #633 (#634)

* Address some of things found in #633

* Improve "state"

includes/collection/class-interactions.php

@@ -102,7 +102,7 @@ function () {
 	 *
 	 * @param array $activity The activity-object
 	 *
-	 * @return array|false The commentdata or false on failure
+	 * @return array|string|int|\WP_Error|false The commentdata or false on failure
 	 */
 	public static function update_comment( $activity ) {
 		$meta = get_remote_metadata_by_actor( $activity['actor'] );
@@ -135,14 +135,18 @@ function () {
 		);
 		\add_filter( 'wp_kses_allowed_html', array( self::class, 'allowed_comment_html' ), 10, 2 );
 
-		$comment = \wp_update_comment( $commentdata, true );
+		$state = \wp_update_comment( $commentdata, true );
 
 		\remove_filter( 'wp_kses_allowed_html', array( self::class, 'allowed_comment_html' ), 10 );
 		\remove_filter( 'pre_option_require_name_email', '__return_false' );
 		// re-add flood control
 		\add_action( 'check_comment_flood', 'check_comment_flood_db', 10, 4 );
 
-		return $comment;
+		if ( 1 === $state ) {
+			return $commentdata;
+		} else {
+			return $state; // Either `false` or a `WP_Error` instance or `0` or `1`!
+		}
 	}
 
 	/**

includes/handler/class-update.php

@@ -66,11 +66,14 @@ public static function handle_update( $array ) {
 	 * @return void
 	 */
 	public static function update_interaction( $activity ) {
-		$state    = Interactions::update_comment( $activity );
-		$reaction = null;
+		$commentdata = Interactions::update_comment( $activity );
+		$reaction    = null;
 
-		if ( $state && ! \is_wp_error( $reaction ) ) {
-			$reaction = \get_comment( $state );
+		if ( ! empty( $commentdata['comment_ID'] ) ) {
+			$state    = 1;
+			$reaction = \get_comment( $commentdata['comment_ID'] );
+		} else {
+			$state = $commentdata;
 		}
 
 		\do_action( 'activitypub_handled_update', $activity, null, $state, $reaction );