diff --git a/product/ERP5/bootstrap/erp5_core/WorkflowTemplateItem/portal_workflow/base_type_interaction_workflow.xml b/product/ERP5/bootstrap/erp5_core/WorkflowTemplateItem/portal_workflow/base_type_interaction_workflow.xml
index f792002e5131b0340db0d5f93aed5ed5f1ce02ce..ebf60d9b5ae4a0c2bcc635c4e27df29ad8545b14 100644
--- a/product/ERP5/bootstrap/erp5_core/WorkflowTemplateItem/portal_workflow/base_type_interaction_workflow.xml
+++ b/product/ERP5/bootstrap/erp5_core/WorkflowTemplateItem/portal_workflow/base_type_interaction_workflow.xml
@@ -12,6 +12,16 @@
               <tuple/>
             </value>
         </item>
+        <item>
+            <key> <string>creation_guard</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>description</string> </key>
+            <value> <string></string> </value>
+        </item>
         <item>
             <key> <string>groups</string> </key>
             <value>
@@ -22,6 +32,14 @@
             <key> <string>id</string> </key>
             <value> <string>base_type_interaction_workflow</string> </value>
         </item>
+        <item>
+            <key> <string>manager_bypass</string> </key>
+            <value> <int>0</int> </value>
+        </item>
+        <item>
+            <key> <string>title</string> </key>
+            <value> <string>Base Type Interaction Workflow</string> </value>
+        </item>
       </dictionary>
     </pickle>
   </record>
diff --git a/product/ERP5/bootstrap/erp5_core/WorkflowTemplateItem/portal_workflow/base_type_interaction_workflow/interactions/BaseType_resetDynamicClasses.xml b/product/ERP5/bootstrap/erp5_core/WorkflowTemplateItem/portal_workflow/base_type_interaction_workflow/interactions/BaseType_resetDynamicClasses.xml
new file mode 100644
index 0000000000000000000000000000000000000000..794933da1bc2179341d3a3b3953e70e50e3067d4
--- /dev/null
+++ b/product/ERP5/bootstrap/erp5_core/WorkflowTemplateItem/portal_workflow/base_type_interaction_workflow/interactions/BaseType_resetDynamicClasses.xml
@@ -0,0 +1,94 @@
+<?xml version="1.0"?>
+<ZopeData>
+  <record id="1" aka="AAAAAAAAAAE=">
+    <pickle>
+      <global name="InteractionDefinition" module="Products.ERP5.Interaction"/>
+    </pickle>
+    <pickle>
+      <dictionary>
+        <item>
+            <key> <string>actbox_category</string> </key>
+            <value> <string>workflow</string> </value>
+        </item>
+        <item>
+            <key> <string>actbox_name</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>actbox_url</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>activate_script_name</string> </key>
+            <value>
+              <tuple/>
+            </value>
+        </item>
+        <item>
+            <key> <string>after_script_name</string> </key>
+            <value>
+              <list>
+                <string>BaseType_resetDynamicDocuments</string>
+              </list>
+            </value>
+        </item>
+        <item>
+            <key> <string>before_commit_script_name</string> </key>
+            <value>
+              <tuple/>
+            </value>
+        </item>
+        <item>
+            <key> <string>description</string> </key>
+            <value> <string>When a portal type is modified, reload the portal type classes that are generated from the Base Type objects.</string> </value>
+        </item>
+        <item>
+            <key> <string>guard</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>BaseType_resetDynamicClasses</string> </value>
+        </item>
+        <item>
+            <key> <string>method_id</string> </key>
+            <value>
+              <list>
+                <string>_setTypeClass*</string>
+                <string>_setTypeMixin*</string>
+                <string>_setTypeInterface*</string>
+              </list>
+            </value>
+        </item>
+        <item>
+            <key> <string>once_per_transaction</string> </key>
+            <value> <int>1</int> </value>
+        </item>
+        <item>
+            <key> <string>portal_type_filter</string> </key>
+            <value>
+              <list>
+                <string>Base Type</string>
+              </list>
+            </value>
+        </item>
+        <item>
+            <key> <string>script_name</string> </key>
+            <value>
+              <tuple/>
+            </value>
+        </item>
+        <item>
+            <key> <string>title</string> </key>
+            <value> <string></string> </value>
+        </item>
+        <item>
+            <key> <string>trigger_type</string> </key>
+            <value> <int>2</int> </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>
diff --git a/product/ERP5/bootstrap/erp5_core/WorkflowTemplateItem/portal_workflow/base_type_interaction_workflow/scripts/BaseType_resetDynamicDocuments.xml b/product/ERP5/bootstrap/erp5_core/WorkflowTemplateItem/portal_workflow/base_type_interaction_workflow/scripts/BaseType_resetDynamicDocuments.xml
new file mode 100644
index 0000000000000000000000000000000000000000..11457118fe1e920ae14d022550b82e6c329bf158
--- /dev/null
+++ b/product/ERP5/bootstrap/erp5_core/WorkflowTemplateItem/portal_workflow/base_type_interaction_workflow/scripts/BaseType_resetDynamicDocuments.xml
@@ -0,0 +1,128 @@
+<?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>state_change[\'object\'].resetDynamicDocuments()\n
+</string> </value>
+        </item>
+        <item>
+            <key> <string>_code</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>_params</string> </key>
+            <value> <string>state_change</string> </value>
+        </item>
+        <item>
+            <key> <string>_proxy_roles</string> </key>
+            <value>
+              <tuple>
+                <string>Manager</string>
+              </tuple>
+            </value>
+        </item>
+        <item>
+            <key> <string>errors</string> </key>
+            <value>
+              <tuple/>
+            </value>
+        </item>
+        <item>
+            <key> <string>func_code</string> </key>
+            <value>
+              <object>
+                <klass>
+                  <global name="FuncCode" module="Shared.DC.Scripts.Signature"/>
+                </klass>
+                <tuple/>
+                <state>
+                  <dictionary>
+                    <item>
+                        <key> <string>co_argcount</string> </key>
+                        <value> <int>1</int> </value>
+                    </item>
+                    <item>
+                        <key> <string>co_varnames</string> </key>
+                        <value>
+                          <tuple>
+                            <string>state_change</string>
+                            <string>_getattr_</string>
+                            <string>_getitem_</string>
+                          </tuple>
+                        </value>
+                    </item>
+                  </dictionary>
+                </state>
+              </object>
+            </value>
+        </item>
+        <item>
+            <key> <string>func_defaults</string> </key>
+            <value>
+              <none/>
+            </value>
+        </item>
+        <item>
+            <key> <string>id</string> </key>
+            <value> <string>BaseType_resetDynamicDocuments</string> </value>
+        </item>
+        <item>
+            <key> <string>warnings</string> </key>
+            <value>
+              <tuple/>
+            </value>
+        </item>
+      </dictionary>
+    </pickle>
+  </record>
+</ZopeData>
diff --git a/product/ERP5/bootstrap/erp5_core/bt/change_log b/product/ERP5/bootstrap/erp5_core/bt/change_log
index c195c94c8071c5db6fca74cbd4ec1bc29eb97851..2ba6d1ea4badabb132a7988b0b37bd78c6d31738 100644
--- a/product/ERP5/bootstrap/erp5_core/bt/change_log
+++ b/product/ERP5/bootstrap/erp5_core/bt/change_log
@@ -1,3 +1,6 @@
+2010-09-26 nicolas.dumazet
+* Reload portal type classes generated from Base Type objects if a Type Definition object is modified.
+
 2010-09-24 arnaud.fontaine
 * Add action "Configure Property Sheets".
 
diff --git a/product/ERP5/bootstrap/erp5_core/bt/revision b/product/ERP5/bootstrap/erp5_core/bt/revision
index a0ac2c52a39de63aa8bfda2bcfe4a1f430dc8e00..00b4913f12b85d532054951998e617ad9d6de4e3 100644
--- a/product/ERP5/bootstrap/erp5_core/bt/revision
+++ b/product/ERP5/bootstrap/erp5_core/bt/revision
@@ -1 +1 @@
-1725
\ No newline at end of file
+1728
\ No newline at end of file