Steps to reproduce:

1. Create a new Unity project using a 3D Universal Template
2. Go to Assets > Create > Animation > Animator Controller
3. Open the created animator controller
4. In the Layers tab, select the "Base Layer"
5. In the Inspector, rename it 
6. Observe the Layers tab

Actual results: The layer name remains unchanged in the Layers tab

Expected results: The layer name updates in the Layers tab

Reproducible with versions: 6000.0.67f1, 6000.3.7f1, 6000.4.0b7, 6000.5.0a6

Tested on (OS): Windows 11

Notes:
- Changing the name from the Layers tab, changes both fields