Sniffers don't have smooth transitions to their idle states when they stop moving

The Bug:

Sniffers don't have smooth transitions to their idle states when they stop moving.

This issue cannot be seen with similar mobs such as sheep, cows, and pigs, therefore introducing an inconsistency.

Steps to Reproduce:

1. Summon a sniffer and wait for it to begin moving.

2. Watch its legs closely and wait for it to stop moving.

3. Take note as to whether or not sniffers have smooth transitions to their idle states when they stop moving.

Observed Behavior:

Sniffers don't have smooth transitions to their idle states when they stop moving.

Expected Behavior:

Sniffers would have smooth transitions to their idle states when they stop moving, following the behavior of similar mobs such as sheep, cows, and pigs.