partial         void CopyExtraPropertiesToClone(INamedEntity clone, bool includeLocalProperties);
 public INamedEntity Clone(bool includeLocalProperties)
 {
     var c = new INamedEntity
             {
                 Id = Id,
                 Name = Name,
             };
     CopyExtraPropertiesToClone(c, includeLocalProperties);
     return c;
 }