ZODB Components: There is no need for `description` and `source_reference` to...

ZODB Components: There is no need for `description` and `source_reference` to be RecordedProperties.

* Not considered for `modified` state (dynamic_class_generation_interaction_workflow).
* `source_reference` sets only once at import from filesystem.

product/ERP5Type/mixin/component.py

@@ -83,7 +83,7 @@ class RecordablePropertyMetaClass(ExtensionClass):
     def getterWrapper(accessor_name, property_name, property_getter):
       dictionary['security'].declareProtected(Permissions.AccessContentsInformation,
                                               accessor_name)
-
+      if property_name in dictionary['_recorded_property_name_set']:
         def getter(self, validated_only=False):
           """
           When validated_only is True, then returns the property recorded if
@@ -100,18 +100,20 @@ class RecordablePropertyMetaClass(ExtensionClass):
               pass
 
           return property_getter(self)
+      else:
+        getter = property_getter
 
       getter.__name__ = accessor_name
       return getter
 
     for (property_name,
-         property_getter) in dictionary['_recorded_property_name_getter_dict'].iteritems():
-      setter_name = '_set' + convertToUpperCase(property_name)
-      dictionary[setter_name] = setterWrapper(setter_name, property_name)
-
+         property_getter) in dictionary['_property_name_getter_dict'].iteritems():
       getter_name = 'get' + convertToUpperCase(property_name)
       dictionary[getter_name] = getterWrapper(getter_name, property_name,
                                               property_getter)
+      if property_name in dictionary['_recorded_property_name_set']:
+        setter_name = '_set' + convertToUpperCase(property_name)
+        dictionary[setter_name] = setterWrapper(setter_name, property_name)
 
     # docstring required for publishing any object
     dictionary['__doc__'] = metacls.__doc__
@@ -163,7 +165,11 @@ class ComponentMixin(PropertyRecordableMixin, Base):
                      'TextDocument',
                      'Component')
 
-  _recorded_property_name_getter_dict = {
+  _recorded_property_name_set = {'reference',
+                                 'version',
+                                 'text_content'}
+
+  _property_name_getter_dict = {
     'reference': BaseAccessor.Getter('getReference',
                                      'reference',
                                      'string',
@@ -302,7 +308,7 @@ class ComponentMixin(PropertyRecordableMixin, Base):
     reference, version and text_content
     """
     if not self.checkConsistency():
-      for property_name in self._recorded_property_name_getter_dict:
+      for property_name in self._recorded_property_name_set:
         self.clearRecordedProperty(property_name)
 
       self.validate()