Entities' eye lines spin while on a boat that is turning

The Bug

When hitboxes are shown (F3 + B), cow's blue line that indicates the direction they're facing starts spinning while the boat is moving. The bug happens on any difficulty and gamemode, as well as on water or land.

Video

Cow hitbox spinning on moving boat

Reproduce

• Put a cow in a boat
• Press F3 + B
• Ride in the boat and move

Observed Result

The blue line was spinning

Expected Result

The blue line wouldn't spin