All newly added "Base Layer" share the exacts the same name under "Shader Properties" in the Inspector when "DefaultCompositionGraph(Composition Profile)" Asset is selected in the Project window, Refer to the attached screenshot.

Steps to repro:
1. Create a new HDRP template project
2. Windows > Render Pipeline > Graphics Compositor >Enable Compositor.
3. Project > Compositor > DefaultCompositionGraph (Composition Profile)
4. Inspector > Shader Properties > Size > 5

Actual Result:
Base Layers are created with the same name

Expected Result:
Base layers should be created with a different name as BaseLayer (1), BaseLayer (2), BaseLayer (3), and so on

Note: HDRP Compositor window introduced in 9.0.0 preview.33.

Reproducible in:
2020.2.0a20, 2020.1.2f1, 2020.1.0b13 with Package version 10.0.0-preview.27, 9.0.0 preview.33.

Environment:
Occurring on Windows 10 & macOS 10.15.