title: a different object with the same identifier value was already associated with the session: 10, of entity: Sales.Entities.Ttable1
body: <p>When I use session.update(object) I get below error and how can I rectify this error?
  I have even tried Session.evict(object) still it is not solved for the below error</p>
  
  <pre><code> a different object with the same identifier value was already associated with the           session: 10, of entity: Sales.Entities.TTable
  </code></pre>