Ticket #41196: query.php.patch

query.php

@@ -25 +25 @@
  */
 function get_query_var( $var, $default = '' ) {
         global $wp_query;
+        if ( ! isset( $wp_query ) ) {
+                _doing_it_wrong( __FUNCTION__, __( 'Retrieving query variables will not work before the query is run. Before then, they always return false.' ), '3.1.0' );
+                return false;
+        }
         return $wp_query->get( $var, $default );
 }