Verification builds:
1.2.0.9 Retail

Summary:
When llamas follow one another to create a caravan, they will run around in circles constantly.

Repro Steps:

1. Create new world in Creative.
2. Obtain Llama Spawn Egg and Lead.
3. Spawn several Llamas.
4. Attach Lead to one of the Llamas.
5. Observe the issue.

Actual Results:
When Player uses Lead on a Llama all other Llamas in the range start to follow it and run in circles instead of simply following the leashed Llama. This issue occurs regardless, if the Llamas are tamed or not.

Expected Results:
When Player leashes Llama it should cause all other nearby Llamas to form a caravan like formation. These Llamas should follow the “leader” in straight line.

Screenshots/Videos attached: Yes

Notes: