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Index: modules/field/modules/text/text.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/field/modules/text/text.module,v
retrieving revision 1.15
diff -u -p -r1.15 text.module
--- modules/field/modules/text/text.module	3 Jul 2009 18:19:29 -0000	1.15
+++ modules/field/modules/text/text.module	21 Jul 2009 18:10:05 -0000
@@ -676,9 +676,17 @@ function text_textarea_with_summary_proc
   $instance = $form['#fields'][$element['#field_name']]['instance'];
   $delta = $element['#delta'];
 
+  $element['summary_wrapper'] = array(
+    '#type' => 'fieldset',
+    '#title' => t('Summary'),
+    '#collapsible' => TRUE,
+    '#collapsed' => TRUE,
+  );
+  
+  $element['summary_wrapper'][$field_key] = array(
   $field_key = $element['#columns'][1];
   $display = !empty($element['#value'][$field_key]) || !empty($instance['settings']['display_summary']);
-  $element[$field_key] = array(
+  $element['summary_wrapper'][$field_key] = array(
     '#title' => t('Summary'),
     '#type' => $display ? 'textarea' : 'value',
     '#default_value' => isset($element['#value'][$field_key]) ? $element['#value'][$field_key] : NULL,