Sniffers jump multiple times when attempting to climb blocks

The Bug:

Sniffers jump multiple times when attempting to climb blocks.

Steps to Reproduce:

1. Build the setup as shown in the provided attachment. setup.png
2. Summon a sniffer on the diamond block and wait for it to begin pathfinding.
3. Watch closely as it approaches and attempts to jump over the gold blocks.
4. Take note as to whether or not sniffers jump multiple times when attempting to climb blocks.

Observed Behavior:

Sniffers jump multiple times.

Expected Behavior:

Sniffers would only jump once to climb up blocks.