After upgrading to version 2.2.1, this command no longer works properly in my existing pipeline:
       
      cmdline: git merge-base origin/master HEAD
      stderr: 'fatal: Not a valid object name origin/master'

          [JENKINS-45666] Origin/master no longer set

          Christopher Eck created issue -
          Christopher Eck made changes -
          Description Original: After upgrading to version 2.2.1, this command no longer works properly in my existing pipeline:
           
          cmdline: git merge-base origin/master HEAD
          [|https://jenkins.ops.krypton.io/blue/organizations/jenkins/experimental/detail/PR-13836/4/pipeline#step-23-log-24] stderr: 'fatal: Not a valid object name origin/master'
          New: After upgrading to version 2.2.1, this command no longer works properly in my existing pipeline:
            
           cmdline: git merge-base origin/master HEAD
          stderr: 'fatal: Not a valid object name origin/master'
          Stephen Connolly made changes -
          Attachment New: Screen Shot 2017-07-19 at 21.34.16.png [ 38964 ]
          Stephen Connolly made changes -
          Attachment New: Screen Shot 2017-07-19 at 21.46.27.png [ 38965 ]
          Stephen Connolly made changes -
          Attachment New: Screen Shot 2017-07-19 at 21.46.15.png [ 38966 ]
          Stephen Connolly made changes -
          Resolution New: Not A Defect [ 7 ]
          Status Original: Open [ 1 ] New: Resolved [ 5 ]

            Unassigned Unassigned
            chrisleck Christopher Eck
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              Updated:
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