Fix cloning refs/pull/* style refs

Signed-off-by: Bence Szépkúti <[email protected]>

Author: bensze01

vars/checkout_repo.groovy

@@ -232,7 +232,7 @@ Map<String, Object> parametrized_repo(String repo, String branch) {
             refspec: "+$remoteRef:refs/remotes/origin/$localBranch",
             credentialsId: env.GIT_CREDENTIALS_ID
         ]],
-        branches: [[name: branch]],
+        branches: [[name: localBranch]],
         extensions: [
             [$class: 'CloneOption', timeout: 60, honorRefspec: true, shallow: true],
             [$class: 'SubmoduleOption', recursiveSubmodules: true, parentCredentials: true, shallow: true],