Index: field_collection.pages.inc
===================================================================
--- a/field_collection.pages.inc
+++ b/field_collection.pages.inc
@@ -32,6 +32,9 @@
 
   field_attach_form('field_collection_item', $field_collection_item, $form, $form_state);
 
+  // Ensure that #entity was attached to the form
+  $form['#entity'] = $field_collection_item;
+
   $form['actions'] = array('#type' => 'actions', '#weight' => 50);
   $form['actions']['submit'] = array(
     '#type' => 'submit',