Referring to the documentation:

It does not work if you trigger your build just for some branch:

I`ve tested only this line:

git checkout -b $("$(System.PullRequest.SourceBranch)".replace('refs/heads/', ''))

Check your build validation policy: Improve code quality with branch policies

CodePudding user response：

I solved my problem by adding the following template inside of my pull request description:

Description Thank you for your contribution to the Bla Bla repo. Before submitting this PR, please make sure:

• [ ] Fix
• [ ] Feature
• [ ] Big

Now, my script is working.