Ticket #53824: 53824.diff

src/wp-includes/class-wp-query.php

@@ -1781 +1781 @@
                  *
                  * @param WP_Query $query The WP_Query instance (passed by reference).
                  */
-                do_action_ref_array( 'pre_get_posts', array( &$this ) );
+                if ( ! did_action( 'pre_get_posts' ) ) {
+                        do_action_ref_array( 'pre_get_posts', array( &$this ) );
+                }
 
                 // Shorthand.
                 $q = &$this->query_vars;