title: KNIME SDF Reader maybe uses default workflow variable value even if overridden via batch mode parameter
body: <p>I'm calling a KNIME workflow in <a href="https://tech.knime.org/faq#q12" rel="nofollow">batch mode</a>, providing the path to an SDF input file via flow variable parameter: </p>
  
  <pre><code>-workflow.variable=template.sdf,C:\correct\path\template.sdf,String
  </code></pre>
  
  <p>The SDF Reader Node seems to try to use the default workflow variable value first. It then proceeds without error, apparently using the value I passed in via batch parameter.</p>
  
  <p>Is that just a logging issue or a bug?</p>
  
  <p><a href="https://i.stack.imgur.com/AhXeX.png" rel="nofollow"><img src="https://i.stack.imgur.com/AhXeX.png" alt="enter image description here"></a></p>