Ticket #48441: class-wp-editor.diff

class-wp-editor.php

@@ -436 +436 @@
                                          *
                                          * @param array $plugins An array of default TinyMCE plugins.
                                          */
-                                        $plugins = array_unique( apply_filters( 'tiny_mce_plugins', $plugins ) );
+                                        $plugins = array_unique( apply_filters( 'tiny_mce_plugins', $plugins, 'classic-block' ) );
 
                                         $key = array_search( 'spellchecker', $plugins );
                                         if ( false !== $key ) {