- User is logged in
- User stays idle until his session expires. He doesn't notice it's expired since there is no notice. Meanwhile he is still looking at a particular thread.
- User makes a post via quick reply. Upon hitting the post reply button, a modal window pops open ("The following error occurred: You must be logged-in to do that.") with the login form.
- Upon filling out the login form in the modal window, the user is returned to the previous thread. But the reply text is lost.