new reset cache suppor for the reloading of old values

data/src/entity_manager/structures.py

@@ -2811,6 +2811,18 @@ def reset(self):
         for relation in all_relations:
             setattr(self, relation, colony.Lazy)
 
+    def reset_cache(self):
+        """
+        Resets the entitie's cache for the current instance so that any
+        access to the data source will be used in "real mode" avoiding any
+        usage of an in memory view of objects.
+
+        This call may be required to avoid outdated and erroneous values
+        coming from data source access operations.
+        """
+
+        self._entities = {}
+
     def use_scope(self, scope_entity):
         """"
         Sets (uses) the scope and entities map attributes in the current

data/src/entity_manager/system.py

@@ -1977,6 +1977,13 @@ def reload(self, entity, options = None):
             value = new_entity.get_value(name)
             entity.set_value(name, value)
 
+        # resets the complete set of entity's cache mechanisms
+        # so that a new entity cache is created from this reload,
+        # this is required so that a new access context is created
+        # for the entity and related values coming from it avoiding
+        # old data to be retrieved/used instead
+        entity.reset_cache()
+
         # enables the entity, providing the entity with the
         # mechanisms necessary for data source communication
         self.enable(entity)