title: Exclude the release branchs from triggering with Jenkins stash-pullrequest-builder
body: <p>Trying to exclude the release branches from triggering with Jenkins stash-pullrequest-builder for pull request builds</p>
  <p><strong>Build PR targeting only these branches:</strong> Comma separated list of branch names (or regexes), blank for all branches.</p>
  <p>I added the regex [^relesae/.*] at <code>Build PR targeting only these branches</code> to build prs with other target branches except release branches.</p>
  <p>But builds are not triggering with any branches unless specify them at <code>Build PR targeting only these branches</code></p>