title: Jenkinsfile copyartifact cannot find artifact when using filter criteria with wildcard
body: <p>I have 2 jobs with 2 different jenkinsfile.
  A job can generate artifacts correctly with:</p>
  
  <pre><code>post {
        always {
            mstest testResultsFile:"testresults*.trx", keepLongStdio: true
            archiveArtifacts artifacts: 'from/path/Deploy/**/*.*', fingerprint: true
  </code></pre>
  
  <p>I use these artifacts in another job, copying with:</p>
  
  <pre><code>        steps {          
            step([$class: 'CopyArtifact', fingerprintArtifacts: true, flatten: true, projectName: 'branch/name', selector: lastSuccessful(), filter: "webpackage.*", target: './artifacts'])
  </code></pre>
  
  <p>When I run without 'filter' criteria, all artifacts are copied. When I use 'filter' as used above, I have this error:</p>
  
  <pre><code>ERROR: Failed to copy artifacts from branch/name with filter: webpackage.*
  </code></pre>
  
  <p>Jenkins and agent are running on Windows SO.
  Should I specify path diferrently?</p>