Hair master stack shader on hair is blown out when there is a backlit light on it

Unity: Materials

6.0.X

We are closing this as we believe it behaves as designed.

How to reproduce:
1. Open the attached project "Hair_Test_Bug.zip"
2. Observe the hair in the Game view window

Expected results: Hair master stack shader on hair is not blown out
Actual results: Hair master stack shader on hair is blown out

Reproducible with: 6000.0.21f1
Could not test with: 2021.3.44f1, 2022.3.47f1 (compilation errors in the Console window)

Reproducible on: Windows 10 22H2
Not reproducible on: No other environment tested