Ticket #16567: 16567.diff

wp-admin/admin-ajax.php

@@ -260 +260 @@
                 $category_nicename = sanitize_title($cat_name);
                 if ( '' === $category_nicename )
                         continue;
-                if ( !($cat_id = term_exists($cat_name, $taxonomy->name, $parent)) ) {
-                        $new_term = wp_insert_term($cat_name, $taxonomy->name, array('parent' => $parent));
-                        $cat_id = $new_term['term_id'];
-                }
+
+                $new_term = wp_insert_term($cat_name, $taxonomy->name, array('parent' => $parent));
+                $cat_id = $new_term['term_id'];
                 $checked_categories[] = $cat_id;
                 if ( $parent ) // Do these all at once in a second
                         continue;