--- a/src/gui/itemviews/qabstractproxymodel.cpp	Fri Apr 16 15:50:13 2010 +0300
+++ b/src/gui/itemviews/qabstractproxymodel.cpp	Mon May 03 13:17:34 2010 +0300
@@ -127,6 +127,7 @@
     } else {
         d->model = QAbstractItemModelPrivate::staticEmptyModel();
     }
+    d->roleNames = d->model->roleNames();
 }
 
 /*!