[JENKINS-14846] Multiple repositories failes checkout of custom branch

Steps to reproduce:

1. Setup git plugin with two repositories (with or without refspec)

2. Specify a job string parameter for the branch

3. Launch the build with a custom branch as parameter

Actual results:

Checks out the last built branch

Expected results:

Check out the branch which was specified by parameter

---
Originally reported by flozzone, imported from: Multiple repositories failes checkout of custom branch

• status: Open
  
• priority: Major
  
• component(s): git-plugin
  
• label(s): git
  
• resolution: Unresolved
  
• votes: 0
  
• watchers: 2
  
• imported: 2025-12-02
  

Raw content of original issue

Steps to reproduce:

1. Setup git plugin with two repositories (with or without refspec)

2. Specify a job string parameter for the branch

3. Launch the build with a custom branch as parameter


Actual results:

Checks out the last built branch


Expected results:

Check out the branch which was specified by parameter

environment

```
jenkins: 1.477 and 1.472

git: 1.1.21 and 1.1.22
```