erp5_free_subscription: Set reference before accepting or rejecting request

bt5/erp5_free_subscription/SkinTemplateItem/portal_skins/erp5_free_subscription/FreeSubscriptionRequest_accept.xml

@@ -54,6 +54,8 @@
 Intent is to ignore accept/accept race conditions but complain about\n
 any other race condition (ex: accept/reject).\n
 """\n
+if not context.getReference():\n
+  context.FreeSubscriptionRequest_generateReference()\n
 if context.getValidationState() != \'submitted\':\n
   return\n
 if context.getDestination():\n

bt5/erp5_free_subscription/WorkflowTemplateItem/portal_workflow/free_subscription_interaction_workflow/interactions/automatic_accept_request.xml

@@ -29,7 +29,6 @@
             <value>
               <list>
                 <string>Call_alarmActiveSense</string>
-                <string>FreeSubscriptionRequest_updateReference</string>
               </list>
             </value>
         </item>

bt5/erp5_free_subscription/WorkflowTemplateItem/portal_workflow/free_subscription_interaction_workflow/scripts/FreeSubscriptionRequest_updateReference.xml

-<?xml version="1.0"?>
-<ZopeData>
-  <record id="1" aka="AAAAAAAAAAE=">
-    <pickle>
-      <global name="PythonScript" module="Products.PythonScripts.PythonScript"/>
-    </pickle>
-    <pickle>
-      <dictionary>
-        <item>
-            <key> <string>Script_magic</string> </key>
-            <value> <int>3</int> </value>
-        </item>
-        <item>
-            <key> <string>_bind_names</string> </key>
-            <value>
-              <object>
-                <klass>
-                  <global name="NameAssignments" module="Shared.DC.Scripts.Bindings"/>
-                </klass>
-                <tuple/>
-                <state>
-                  <dictionary>
-                    <item>
-                        <key> <string>_asgns</string> </key>
-                        <value>
-                          <dictionary>
-                            <item>
-                                <key> <string>name_container</string> </key>
-                                <value> <string>container</string> </value>
-                            </item>
-                            <item>
-                                <key> <string>name_context</string> </key>
-                                <value> <string>context</string> </value>
-                            </item>
-                            <item>
-                                <key> <string>name_m_self</string> </key>
-                                <value> <string>script</string> </value>
-                            </item>
-                            <item>
-                                <key> <string>name_subpath</string> </key>
-                                <value> <string>traverse_subpath</string> </value>
-                            </item>
-                          </dictionary>
-                        </value>
-                    </item>
-                  </dictionary>
-                </state>
-              </object>
-            </value>
-        </item>
-        <item>
-            <key> <string>_body</string> </key>
-            <value> <string>free_subscription_request = state_change["object"]\n
-\n
-free_subscription_request.FreeSubscriptionRequest_generateReference()\n
-</string> </value>
-        </item>
-        <item>
-            <key> <string>_params</string> </key>
-            <value> <string>state_change, **kw</string> </value>
-        </item>
-        <item>
-            <key> <string>id</string> </key>
-            <value> <string>FreeSubscriptionRequest_updateReference</string> </value>
-        </item>
-      </dictionary>
-    </pickle>
-  </record>
-</ZopeData>