Fishing rod activates when activating a pet

When the fishing rod is in hand, right-clicking a pet to make it sit/walk also causes the fishing rod to activate, casting/reeling the lure.

 

Steps:

1. Put a fishing rod in hand.
2. Face a pet.
3. Right click the pet.

Expected: Pet sits / stands and fishing rod does not activate.

Actual: Pet sits / stands but fishing rod also casts / reels.