Ticket #14645: maybe_serialize.14645.diff

wp-includes/classes.php

@@ -599 +599 @@
                 $i = 0;
                 foreach ( $meta_query as $q ) {
                         $meta_key = isset( $q['key'] ) ? trim( $q['key'] ) : '';
-                        $meta_value = isset( $q['value'] ) ? $q['value'] : '';
+                        $meta_value = isset( $q['value'] ) ? maybe_serialize( $q['value'] ) : '';
                         $meta_compare = isset( $q['compare'] ) ? strtoupper( $q['compare'] ) : '=';
                         $meta_type = isset( $q['type'] ) ? strtoupper( $q['type'] ) : 'CHAR';