When I ran a shell script through pipeline job today, I found that the Git_Branch parameter value I got from the bash script was different from the Git_Branch value I passed in when I triggered the job.

After analysis and debugging, I found that the git plugin tampered with the value of the job parameter Git_Branch. And I found that freestyle job had similar issue.

The phenomenon is as follows：

When I use b1234567 to trigger the pipeline job, the value the Git_Branch shell script gets is the branch information used by the git plug-in.

When I trigger freestyle job in the same way, the Git_Branch value is overwritten when the git plug-in is used.

The Git_Branch value is correctly get when the git plug-in is not used