Direction of ridden entity changes when changing perspectives

Priority: 3
Verification builds:

1.14.60 Live Retail

Summary:

When riding an entity in a straight line, the entity reverts back to facing on a north-south axis when looping through the camera perspectives

Impact:

Breaks the function of riding an entity in a straight line while switching camera angles

Repro Steps:

1. Make a new world
2. Spawn and tame a horse
3. Ride the horse in a west-east direction
4. Switch between camera perspectives

Observed Results:

The direction of the entity changes once the perspective is back in first-person perspective

Expected Results:

The entity keeps riding in a consistent direction

Screenshots/Videos attached: Yes

Notes:
The entity always reverts back to the north-south axis