Merge branch 'lyk_25879' into 'master'

* Fix bug 25879.

See merge request easycorp/zentaopms!4792

module/common/model.php

@@ -1966,7 +1966,7 @@ EOD;
             }
         }
 
-        $changes    = array();
+        $changes = array();
         foreach($new as $key => $value)
         {
             if(is_object($value) or is_array($value)) continue;

module/story/model.php

@@ -794,7 +794,7 @@ class storyModel extends model
             ->cleanFloat('estimate')
             ->setDefault('assignedDate', $oldStory->assignedDate)
             ->setDefault('lastEditedBy', $this->app->user->account)
-            ->setDefault('reviewedBy', '')
+            ->setDefault('reviewedBy', $oldStory->reviewedBy)
             ->setDefault('mailto', '')
             ->add('id', $storyID)
             ->add('lastEditedDate', $now)