I believe dying and feeding are occurring simultaneously, and that would account for a lot of weirdness in the food pen/pets in grave with hunger. I've asked Pat to delay feeding for 5 - 10 minutes after reset as a way to resolve the problem. That way pets that are supposed to die will go ahead and die with 0 hunger instead of being fed in the grave. Same thing with your log above - it would go ahead and lose its hunger points for the day, then be fed if it were still alive after that instead of being fed and losing hunger points all at once.