As first reported in JENKINS-30744 windows 'bat' workflow task hangs on the encoding of git branch names when these branches contain special characters (tested with gitflow naming convention that has '/' in the branch name).

The encoded path seems to create problems on windows when using 'bat'.
Any branch that has a slash in it for example ('feature/myfeature') will get an encoded path on windows like <workspace_path>/feature%2Fmyfeature@script and <workspace_path>/feature%2Fmyfeature.
When I apply the following workflow in a multibranch job in a root file 'Jenkinsfile', Jenkins hangs forever on the bat command

node {
    stage 'Checkout'
    checkout scm
    stage 'Build'
    bat "echo 'test'"
}

When I add this same script on the 'master' branch everything is fine.