A lead breaks, shows it is still attached.

If I have a lead on an animal, randomly when I turn around, the animal is far away doing it's own thing, but is still showing it is attached to the lead. If I log out, then back in it removes the lead visual, but depending on where the lead actually broke, I can't find. This also seems to be an issue with teathering animals to fence posts. When I log back in, the animals and the leads are gone.

Steps to reproduce:

1. Attach a lead to a horse behind a fence or in a hole 2 blocks deep.
2. Walk away from the horse. Note that the attached lead renders even at a great distance.
3. Return to the horse. Note that the lead has been dropped, but the attached lead is still being rendered.