[JENKINS-48226] MultiBranch doesn't distinguish Branches and PRs

jenkins.branch.Branch#getName uses head.getName

That ends that branch name equals PR name makes branch api crazy.

As example your github-branchsource-plugin https://ci.jenkins.io/job/Plugins/job/github-plugin/job/PR-182/ after branch appeared in Branches it disappeared in PullRequests and mixined build history.

And guess revision https://ci.jenkins.io/job/Plugins/job/github-plugin/job/PR-182/5/

Normally SCMCategories must be part of branch names or at all subfolders. And the easiest: enforce implementations to deal themselves with prefixes (that ideally are categories).

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Originally reported by integer, imported from: MultiBranch doesn't distinguish Branches and PRs

• status: Reopened
  
• priority: Blocker
  
• component(s): branch-api-plugin, github-branch-source-plugin
  
• resolution: Unresolved
  
• votes: 1
  
• watchers: 1
  
• imported: 2025-12-02
  

jenkins.branch.Branch#getName uses head.getName

That ends that branch name equals PR name makes branch api crazy.

As example your github-branchsource-plugin https://ci.jenkins.io/job/Plugins/job/github-plugin/job/PR-182/ after branch appeared in Branches it disappeared in PullRequests and mixined build history.


And guess revision https://ci.jenkins.io/job/Plugins/job/github-plugin/job/PR-182/5/ 


Normally SCMCategories must be part of branch names or at all subfolders. And the easiest: enforce implementations to deal themselves with prefixes (that ideally are categories).