[JENKINS-64896] overrideIndexTriggers not respected on PRs

I have overrideIndexTriggers(false) set in my Jenkinsfile, and it prevents builds from triggering when pushing to branches. However I noticed that PRs are still being built when they are opened in GitHub.

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Originally reported by mcascone, imported from: overrideIndexTriggers not respected on PRs

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

Raw content of original issue

I have overrideIndexTriggers(false) set in my Jenkinsfile, and it prevents builds from triggering when pushing to branches. However I noticed that PRs are still being built when they are opened in GitHub.

• environment: Jenkins 2.263.1