It's rather hard for the game to tell you what you last saw there, since that would mean significantly more information being stored.
I'd like to see recalled contents treated differently from ones currently in sight. So, for instance, if you 'l'ook at a door that is outside of LOS, it should say "You recall a door here", rather than saying "A closed door". Similarly, "You recall seeing items here", "There was a web here", or "You remember a white altar here".