When a horse is leashed, holding a saddle, action button breaks.

When a horse is leashed and the player holds a saddle in hand beside a horse, the action button says "unleash" but clicking it causes the player to ride the horse.

To reproduce:
1. Spawn a horse in Creative mode (flat world).
2. Use a lead to LEASH the horse.
3. Select a saddle and approach the horse.
The action button says UNLEASH rather than RIDE.
4. Click the action button.
The horse reacts as if trying to RIDE.
Galaxy 4