message: test for PR existence
diff: @@ -79,7 +79,7 @@ node {
  }
  stage ('minishift tests') {
  try {
  - if (pullRequest.labels.contains("skip-openshift-tests")) {
  + if (env.CHANGE_ID && pullRequest.labels.contains("skip-openshift-tests")) {
  sh script: 'echo "PR identified as not needing Openshift testing."', label: "Skipping Openshift testing stage"
  } else {
  sh 'make minishift/cleanall || echo'
  