[provide a description of the issue]

Environment

• Version: 1.31.0 (user setup)
• Commit: 7c66f58312b48ed8ca4e387ebd9ffe9605332caa
• Date: 2019-02-05T22:35:56.624Z
• Electron: 3.1.2
• Chrome: 66.0.3359.181
• Node.js: 10.2.0
• V8: 6.6.346.32
• OS: Windows_NT x64 10.0.17763

Steps To Reproduce

1. Clone https://github.com/spring-projects/spring-boot or https://github.com/wildfly/wildfly
2. Open the repo in vscode
3. Close the repo after the first-time initialization is done(full built is done for the first time)
4. Reopen the repo in vscode

Current Result

A full build will be triggered after some times

Expected Result

No full build should be triggered since there is no change made on the contents

Additional Informations

The issue only exists on the Windows platform, but not macOS, Linux
Might also exists for small/medium size projects, but it takes less time to do the building.