-Unsave icon () does not disappear from the shader name on saving for HDRP shaders.
-It disappears when saving shader twice.
-It occurs only with HDRP shaders.

Steps to repro:
1. Create anew HDRP template project.
2. Project Window > Click "+" > HDRP > StackLit Shader Graph.
3. Open the shader > Blackboard Window.
4. Add any property(Vector) > Click on Save Asset.

Actual Result:
Unsave icon () does not disappear from the shader name.

Expected Result:
Unsave icon (*) should disappear from the shader name.

Reproducible in:
2020.2.0a19, 2020.1.0f1, 2020.1.0b6 with Package version 9.0.0 preview.33, 8.2.0, 8.1.0.

Environment:
Occurring on Windows 10 & Mac 10.15.