Problem with posting after login expiration

[luismarques]

When I come to the forums after some time (a day or more? not sure), I will be logged-out, but I won't notice. If I try to post something then I'll be able to compose the post, but when I click the Post button it fails to post, reloading the page but not giving an error. If I login then the posting starts working again.

[luismarques]

BTW, as in #11, the reload does not keep the text of the post. Fortunately, the browser's back button does. It would be nice if errors kept the text, as stated previously.