don't fail if we don't have any destinations

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@19357 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_crm/SkinTemplateItem/portal_skins/erp5_crm/Event_viewRelatedEventList/listbox_destination_title.xml

@@ -3,11 +3,8 @@
   <record id="1" aka="AAAAAAAAAAE=">
     <pickle>
       <tuple>
-        <tuple>
-          <string>Products.ERP5Form.ProxyField</string>
-          <string>ProxyField</string>
-        </tuple>
-        <none/>
+        <global name="ProxyField" module="Products.ERP5Form.ProxyField"/>
+        <tuple/>
       </tuple>
     </pickle>
     <pickle>
@@ -132,18 +129,15 @@
   <record id="2" aka="AAAAAAAAAAI=">
     <pickle>
       <tuple>
-        <tuple>
-          <string>Products.Formulator.TALESField</string>
-          <string>TALESMethod</string>
-        </tuple>
-        <none/>
+        <global name="TALESMethod" module="Products.Formulator.TALESField"/>
+        <tuple/>
       </tuple>
     </pickle>
     <pickle>
       <dictionary>
         <item>
             <key> <string>_text</string> </key>
-            <value> <string>python:" / ".join(cell.getDestinationTitleList())</string> </value>
+            <value> <string>python:" / ".join(cell.getDestinationTitleList() or [])</string> </value>
         </item>
       </dictionary>
     </pickle>

bt5/erp5_crm/bt/revision

-155
\ No newline at end of file
+156
\ No newline at end of file