Ticket #21290: query.diff

wp-includes/query.php

@@ -2216 +2216 @@
                 if ( $this->is_tax ) {
                         if ( empty($post_type) ) {
                                 $post_type = 'any';
+                                $taxonomies = get_taxonomies();
+                                foreach ( $taxonomies as $taxonomy ) {
+                                        if ( isset($this->query_vars[$taxonomy]) ) {
+                                                $tax_obj = get_taxonomy($taxonomy);
+                                                $post_type = $tax_obj->object_type;
+                                                break;
+                                        }
+                                }
                                 $post_status_join = true;
                         } elseif ( in_array('attachment', (array) $post_type) ) {
                                 $post_status_join = true;