Remove aggro on Tibbers when Annie dies.
^Title.
Seriously, though. I don't think Tibbers should just disappear when Annie dies, but I don't think he should automatically chase someone down when she dies. You either 1) used all your mobility to get on and kill Annie or 2) used all your mobility to get away from Annie.
Having Tibbers aggro on her death just means free damage for no reason. You shouldn't have to burn flash because Tibbers goes postal over the death of a midget.
PSA: I think Tibbers aggroing on Annie's stunned target is fine.