Currently, in the UI, the Pull Request (PR) ID is displayed as the job name (example: PR-3), and when you mouse hover over the PR ID then the PR name pops up in a tool-tip label. This should be reversed, the job name should be named after the Pull Request name, not the ID, and the tool-tip should pop up showing the PR ID. The PR name appearing in the UI is much more important than the PR ID, and showing the PR name as the Jenkins job name is much more valuable to the user. Alternatively, the UI can display "{PR-ID} - {PR-NAME}" as the job name.

Note: The job ID itself can remain as the PR ID (what appears in the URL), it's just what appears in the UI to the user that's important, the "display name" for the job name should be the PR name, or at least have the PR name as part of the human-readable label.