Revert previous change, it is not appropriated. setData(None) should be supported.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@29035 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_crm/SkinTemplateItem/portal_skins/erp5_crm/Event_afterClone.xml

@@ -53,7 +53,7 @@
         </item>
         <item>
             <key> <string>_body</string> </key>
-            <value> <string>context.setData("")\n
+            <value> <string>context.setData(None)\n
 </string> </value>
         </item>
         <item>
@@ -92,6 +92,7 @@
                           <tuple>
                             <string>_getattr_</string>
                             <string>context</string>
+                            <string>None</string>
                           </tuple>
                         </value>
                     </item>

bt5/erp5_crm/bt/revision

-438
\ No newline at end of file
+439
\ No newline at end of file