trade: fix Organisation "jump to Purchase Packing List" action

The URL was in the description, so this action was not working since a409a7e6
(Fix jump action by using Base_jumpToRelatedObject to jump and
Base_checkPermission to check that the destination module is visible, 2008-12-02)

bt5/erp5_trade/ActionTemplateItem/portal_types/Organisation/jump_to_purchase_packing_list.xml

@@ -8,7 +8,9 @@
       <dictionary>
         <item>
             <key> <string>action</string> </key>
-            <value> <string></string> </value>
+            <value>
+              <persistent> <string encoding="base64">AAAAAAAAAAI=</string> </persistent>
+            </value>
         </item>
         <item>
             <key> <string>categories</string> </key>
@@ -25,16 +27,14 @@
         <item>
             <key> <string>condition</string> </key>
             <value>
-              <persistent> <string encoding="base64">AAAAAAAAAAI=</string> </persistent>
+              <persistent> <string encoding="base64">AAAAAAAAAAM=</string> </persistent>
             </value>
         </item>
         <item>
             <key> <string>description</string> </key>
-            <value> <string encoding="cdata"><![CDATA[
-
-string:${object_url}/Base_jumpToRelatedObject?base_category=source&portal_type=Purchase+Packing+List
-
-]]></string> </value>
+            <value>
+              <none/>
+            </value>
         </item>
         <item>
             <key> <string>icon</string> </key>
@@ -68,6 +68,23 @@ string:${object_url}/Base_jumpToRelatedObject?base_category=source&portal_type=P
     </pickle>
   </record>
   <record id="2" aka="AAAAAAAAAAI=">
+    <pickle>
+      <global name="Expression" module="Products.CMFCore.Expression"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>text</string> </key>
+            <value> <string encoding="cdata"><![CDATA[
+
+string:${object_url}/Base_jumpToRelatedObject?base_category=source&portal_type=Purchase+Packing+List
+
+]]></string> </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+  <record id="3" aka="AAAAAAAAAAM=">
     <pickle>
       <global name="Expression" module="Products.CMFCore.Expression"/>
     </pickle>