Index: openacs-4/packages/bug-tracker/www/patch.adp
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/bug-tracker/www/patch.adp,v
diff -u -r1.10 -r1.11
--- openacs-4/packages/bug-tracker/www/patch.adp	3 Jul 2015 11:19:06 -0000	1.10
+++ openacs-4/packages/bug-tracker/www/patch.adp	25 May 2016 07:38:02 -0000	1.11
@@ -1,7 +1,7 @@
 <master src="../lib/master">
 <property name="doc(title)">@page_title;literal@</property>
 <property name="context">@context;literal@</property>
-<property name="displayed_object_id">@patch.patch_id;literal@</property>
+<if @patch.patch_id@ defined><property name="displayed_object_id">@patch.patch_id;literal@</property></if>
 
 <formtemplate id="patch"></formtemplate>