Fixed #672766 by fearlsgroove: Apply default to CCK multiple fields on AHAH.

better_formats.module

@@ -310,7 +310,7 @@ function better_formats_text_process($element, $edit, $form_state, $form) {
     $default    = better_formats_get_default_format('node', $form['type']['#value']);
 
     // Overwrite format default if new node.
-    if (!isset($form_state['values']['nid']) || !isset($format)) {
+    if (!isset($form_state['values']['nid']) || empty($format)) {
       $format = $default;
     }
     $format = filter_resolve_format($format);