[JENKINS-63550] Git checkouts last built branch instead of specified "branch to build" when no change in branch

I have a parameterized job which can build several Git branch. The "branch to build" is taken as job parameter.

Starting from a new job, firstly I build branch A, and then branch B. Then I'd like to rebuild branch A, without any commit in any branch in the meanwhile. But when I launch the build with branch A as parameter, Jenkins still checkouts the last built branch (B).

 

I suppose that Git plugin compare the SHA of the latest built commit with the SHA of the latest commit on remote branch: if this is different, all works as expected (checkout on the specified branch A), but if this is the same it still checkouts the last built branch B (why??).

If I purge Git Build Data as described here (https://plugins.jenkins.io/git/#remove-git-plugin-buildsbybranch-builddata-script) I can rebuild branch A (but I cannot do this purge anytime!)

 

Jenkins version: 2.164.3

Git plugin version: 4.2.2

Git client plugin version: 3.2.1

Job Type: Maven job

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Originally reported by morettileo, imported from: Git checkouts last built branch instead of specified "branch to build" when no change in branch

• status: Open
  
• priority: Major
  
• component(s): git-plugin
  
• resolution: Unresolved
  
• votes: 0
  
• watchers: 1
  
• imported: 2025-12-02
  

Raw content of original issue

I have a parameterized job which can build several Git branch. The "branch to build" is taken as job parameter.




Starting from a new job, firstly I build branch A, and then branch B. Then I'd like to rebuild branch A, without any commit in any branch in the meanwhile. But when I launch the build with branch A as parameter, Jenkins still checkouts the last built branch (B).


 


I suppose that Git plugin compare the SHA of the latest built commit with the SHA of the latest commit on remote branch: if this is different, all works as expected (checkout on the specified branch A), but if this is the same it still checkouts the last built branch B (why??).


If I purge Git Build Data as described here (https://plugins.jenkins.io/git/#remove-git-plugin-buildsbybranch-builddata-script) I can rebuild branch A (but I cannot do this purge anytime!)


 


Jenkins version: 2.164.3


Git plugin version: 4.2.2


Git client plugin version: 3.2.1


Job Type: Maven job

1 attachment

- [image-2020-08-28-14-43-51-924.png](https://issues.jenkins.io/secure/attachment/52469/image-2020-08-28-14-43-51-924.png)
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