Ticket #36784: 36784.2.diff

src/wp-includes/comment.php

@@ -2023 +2023 @@
         $data = wp_array_slice_assoc( $data, $keys );
         $rval = $wpdb->update( $wpdb->comments, $data, compact( 'comment_ID' ) );
 
+        // If metadata is provided, store it.
+        if ( isset( $data['comment_meta'] ) && is_array( $data['comment_meta'] ) ) {
+                foreach ( $data['comment_meta'] as $meta_key => $meta_value ) {
+                        update_comment_meta( $comment_ID, $meta_key, $meta_value, true );
+                }
+        }
+
         clean_comment_cache( $comment_ID );
         wp_update_comment_count( $comment_post_ID );
         /**