Ticket #18401: 18401.patch

meta.php

@@ -724 +515 @@
                         $meta_value = $q['value'];
 
                         if ( in_array( $meta_compare, array( 'IN', 'NOT IN', 'BETWEEN', 'NOT BETWEEN' ) ) ) {
-                                if ( ! is_array( $meta_value ) )
+                                if ( ! is_array( $meta_value ) ) {
                                         $meta_value = preg_split( '/[,\s]+/', $meta_value );
+                                } else {
+                                        $meta_compare = 'IN';
+                                }
 
                                 if ( empty( $meta_value ) ) {
                                         unset( $join[$i] );