Blue highlight (override indicator) is missing for Radius and Height Properties in Nev Mesh Obstacle even though changes are visible in the Override window. Refer the attached video

Steps to reproduce:
1. Create a new project
2. Hierarchy >right-click > Create Empty
3. Inspector > Add component > Nev Mesh Obstacle> Add
4. Hierarchy > GameObject > Inspector > Nev Mesh Obstacle > Shape > Capsule > Select
5. Create Prefab of GameObject
6. Hierarchy > GameObject > Inspector > Nev Mesh Obstacle > Change Radius and Height Properties.

Actual result: Blue highlight is missing even though changes are visible in Override window

Expected result: Changes made to the prefab should be highlighted

Occurring in: 2020.2.0a20, 2020.1.0f1, 2019.4.7f1, 2019.1.0a1

Note: Blue highlight is introduced in 2019.1.0a1

Environment:
Windows 10 & macOS 10.14