title: echo value of coalesced variable in yaml with azure devops
body: <p>I have this variable in yaml</p>
  <pre><code>sonarVerbose: $[coalesce(variables['SonarVerbose'],false)]
  </code></pre>
  <p>and then I would like to output it which I do like this</p>
  <pre><code>- script: | 
     echo value is ${{variables.SonarVerbose}}
  </code></pre>
  <p>but it echo's [coalesce(variables['SonarVerbose'],false)] and not an expected 'false'.</p>
  <p>Is this not possible ?</p>