Ticket #19306: 19306.diff

wp-includes/plugin.php

@@ -283 +283 @@
 
         if( isset($wp_filter[$tag]) ) {
                 if( false !== $priority && isset($wp_filter[$tag][$priority]) )
-                        unset($wp_filter[$tag][$priority]);
+                        $wp_filter[$tag][$priority] = array();
                 else
-                        unset($wp_filter[$tag]);
+                        $wp_filter[$tag] = array();
         }
 
         if( isset($merged_filters[$tag]) )