Ticket #20929: functions.wp_list_filter.patch

wp-includes/functions.php

@@ -2496 +2496 @@
 
                 $matched = 0;
                 foreach ( $args as $m_key => $m_value ) {
-                        if ( $m_value == $to_match[ $m_key ] )
+                        if ( array_key_exists( $m_key, $to_match ) && $m_value == $to_match[ $m_key ] )
                                 $matched++;
                 }