When you riding minecart in old versions it causes auto rotation of your view direction.
Feature broken between 1.5-1.6.4

What I expected to happen was...:
Camera rotates on minecart rotation (it will be better if rotation will work not only on corners, head rotation should be parented to minecraft, but unparented on rail parts with frequent turns)

Example (1.5):
https://youtu.be/ssCFG6MvH8M

What actually happened was...:
Your view always directed in one way until you move head manually

Example (1.19.3):
https://youtu.be/LzVHcwQinwI

Steps to Reproduce:
1. Use latest minecraft version (1.19.3)
2. Make railroad with turns
3. Try to ride minecart when it turns left or right