UIToolkit image is not repainted when making style changes to tint color

Reproduction steps:

1. Open the attached “uitoolkitbug.zip“ project
2. Open the “Assets/Scenes/SampleScene.unity” Scene
3. Enter the Play Mode
4. Hover over the Game View
5. Observe the color of the image

Expected result: The image in the Game View turns red
Actual result: The image in the Game View stays white

Reproducible with: 2022.2.0a15 2022.2.2f1, 2023.1.0a25
Not reproducible with: 2021.3.16f1, 2022.1.24f1, 2022.2.0a14
Couldn’t test with: 2020.3.44f1 (UIDocument Asset is not implemented)

Reproducible on: Windows 10 (21H2)

Note: Adding something meaningless such as “bottom: 20px” to the Test.uss Asset next to “.test1:hover .test2” fixes the issue by forcing a repaint on hover