Ticket #41113: 41113.diff

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

@@ -429 +429 @@
                         foreach ( $exclude_tree as $extrunk ) {
                                 $excluded_children = array_merge(
                                         $excluded_children,
-                                        (array) get_terms( $taxonomies[0], array(
+                                        (array) get_terms( reset( $taxonomies ), array(
                                                 'child_of' => intval( $extrunk ),
                                                 'fields' => 'ids',
                                                 'hide_empty' => 0