title: Octave does not plot correct face color of marker
body: <p>What's wrong with my code?</p>
  
  <p><code>octave:26&gt; plot([1;2;3;4],[1;8;27;64], 'marker', 'o', 'linestyle', 'none', 'marker', 'o', 'markeredgecolor', 'red', 'markerfacecolor', 'black', 'markersize', 20);</code></p>
  
  <p>It creates blue empty circles (with white background within the circles).</p>
  
  <p>Version Info: GNU Octave, version 3.2.4</p>