Ticket #31789: 31789.3.diff

src/wp-admin/includes/theme.php

@@ -421 +421 @@
          * @param null|array $themes          An array of WP_Theme objects to prepare, if any.
          * @param string     $current_theme   The current theme slug.
          */
-        $prepared_themes = (array) apply_filters( 'pre_wp_prepare_themes_for_js', array(), $themes, $current_theme );
+        $prepared_themes = (array) apply_filters( 'pre_prepare_themes_for_js', array(), $themes, $current_theme );
 
         if ( ! empty( $prepared_themes ) ) {
                 return $prepared_themes;