[JENKINS-12655] GIT_BRANCH is incorrect in build steps when branch choosing strategy is set to inverse (but it is correct in build name macro)

Context: I'm trying to create a parameterized job chain for our branches.

Version info:

Jenkins 1.450

Git 1.1.15

build-name-setter 1.3

parametrized trigger 2.12

1) Set the git branch to */master and in advanced, select branching strategy = inverse

2) Set the build name (using plugin) to #${BUILD_NUMBER}.${GIT_BRANCH}

3) In the build, use shell to execute: echo ${BUILD_BRANCH}

4) Push a change into a branch in git then manually start the build in Jenkins

Result:

The build string is set correctly to the branch used in step#4, but the echo in step #3 incorrectly says origin/master. Note, that the wrong GIT_BRANCH is also sent in my parameterized trigger.

The setting for GIT_BRANCH is correct at all times when Default choosing strategy is selected.

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Originally reported by rmorgenstein, imported from: GIT_BRANCH is incorrect in build steps when branch choosing strategy is set to inverse (but it is correct in build name macro)

• status: Open
  
• priority: Major
  
• component(s): git-plugin
  
• resolution: Unresolved
  
• votes: 5
  
• watchers: 9
  
• imported: 2025-12-02
  

Raw content of original issue

Context: I'm trying to create a parameterized job chain for our branches. 

Version info: 

Jenkins 1.450

Git 1.1.15

build-name-setter 1.3

parametrized trigger 2.12


1) Set the git branch to */master and in advanced, select branching strategy = inverse

2) Set the build name (using plugin) to #${BUILD_NUMBER}.${GIT_BRANCH}

3) In the build, use shell to execute: echo ${BUILD_BRANCH}

4) Push a change into a branch in git then manually start the build in Jenkins


Result: 

The build string is set correctly to the branch used in step#4, but the echo in step #3 incorrectly says origin/master. Note, that the wrong GIT_BRANCH is also sent in my parameterized trigger.


The setting for GIT_BRANCH is correct at all times when Default choosing strategy is selected.