Test status is not reflecting updated result on clicking on Clear Results button in the toolbar

Steps to Reproduce:
1. Create a new project
2. Open Window > General > TestRunner
3. Click on the Create EditMode Test Assembly Folder button in the Test Runner
4. Click on the Create Test Script in current folder button
5. Click on Run All button
6. Click on Clear Result button

Expected Result: All results should be cleared

Actual Result: Show Succeeded icon is not getting reset

Reproducible on: 2020.1.0a3, 2019.3.0b2, 2019.2.0f2, 2019.1.10f1, 2018.3.0f2

Environment: Windows 10 and Mac 10.14