Git changes highlighting missing when Java project is open

While working with Java in VS Code, I noticed Git changes highlighting missing when Java project is open.

Environment

• Operating System: Windows 10
• JDK version: OpenJDK

java version "17.0.2" 2022-01-18 LTS
Java(TM) SE Runtime Environment (build 17.0.2+8-LTS-86)
Java HotSpot(TM) 64-Bit Server VM (build 17.0.2+8-LTS-86, mixed mode, sharing)

• Visual Studio Code version: 1.66.0
• Java extension version: v0.22.2

Steps To Reproduce

1. Open or create basic Java project (with Gradle?).
2. Initialize git in the project directory.
3. Create initial commit.
4. Do some changes.

Current Result

No difference colours while in editor with Java project open:

Meanwhile other editor (without Java project open):

Expected Result

I wish Java extensions haven't mess up Git highlighting...

Additional Information

If logs are necessary, what should I include for visual bugs?

Reproduce the missing Git change highlighting in the listed Windows 10, JDK 17, VS Code 1.66.0, and Java extension v0.22.2 environment using the Java project and Git steps provided. Compare the Java project editor with the non-Java editor, then identify the relevant extension entry point and verify that changed files show the expected editor colours.