title: CsvHelper: An element with the same key '' already exists in the ExpandoObject
body: <p>With code similar to, I receive the exception:</p>
  
  <blockquote>
    <p>An element with the same key '' already exists in the ExpandoObject</p>
  </blockquote>
  
  <pre><code>using (var reader = new StreamReader("SampleData.csv"))
  using (var csv = new CsvReader(reader))
  {
      var records = csv.GetRecords&lt;dynamic&gt;();
  }
  </code></pre>