Ticket #22096: 22096.diff

wp-includes/meta.php

@@ -716 +716 @@
 
                 // Split out the queries with empty arrays as value
                 foreach ( $this->queries as $k => $q ) {
-                        if ( is_array( $q['value'] ) && empty( $q['value'] ) ) {
+                        if ( isset( $q['value'] ) && is_array( $q['value'] ) && empty( $q['value'] ) ) {
                                 $key_only_queries[$k] = $q;
                                 unset( $this->queries[$k] );
                         }