What I expected to happen was that the pumpkin would only be the size of my head.
What actually happened was that it was half the size of my players body in F5 view and it was upside down.
Steps to Reproduce:
1. Get Pumpkin
2. Wear on head
3. Go on F5 (3rd Person) View
Definitely a serious issue, likely due to new rendering changes. Occurs in 3rd person and in inventory.