Unable to reset the "Fbx Export Settings" properties under Project Settings, refer to the attached video

Steps to repro:
1. Create a new Project
2. Windows > Package Manager > FBX Exporter > Install
3. Edit > Project Settings > FBX Export
4. FBX Export > change properties > Reset

Actual Result: Reset functionality is not working

Expected Result: Default values should be assigned on reset

Reproducible on: 2020.2.0b11, 2020.1.14f1, 2019.3.10f1 with Package Vesrion 4.0.0-pre.1, 3.2.1-preview.2,
2018.3.4f1 with 2.0.1 - Preview 4

Environment:
Windows 10 and macOS 10.14