Base layer texture does not refresh after removing New SubLayer under Render schedule in HDRP Compositor window.

Steps to repro:
1. Create a new HDRP template project
2. Windows > Render Pipeline > HD Render Pipeline Compositor.
3. Enable Compositor > Render Schedule > Remove Camera SubLayer.
4. Add Image SubLayer > Properties > Source Image > ContructionLight_Albedo.
5. Render Schedule > Remove Image SubLayer.

Actual Result:
Base layer texture does not refresh on removing Image SubLayer.

Expected Result:
Base layer texture should refresh on removing Image SubLayer.

Reproducible in:
2020.2.0a19, 2020.1.0f1, 2020.1.0b13 with Package version 9.0.0 preview.33.

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

Environment:
Occurring on Windows 10 & Mac 10.15.