Originally Posted by Therai
That happens so you don't get locked out of things for not having quest items on you, unfortunately it hasn't been implemented very well

That's a slight understatement, it's terrible lol.
Basically no companion keeps their bags now and Tav ends up with all of them unless you play the game with the same party all the way, you can't give them back unless you add the companion into the party but of course you're getting someone elses bags by doing that.
If your strength char was carrying corpses (who'd do that lol?) and gets removed from party they will all end up moved to your possibly 8str Tav who is now encumbered, if not lready encumbered from all the food weight they suddenly gained.