title: LaTex, trying to use \ref{} or \autoref{} to a label in an appendix shows up empty in pdf
body: <p>Trying to use <code>\ref{}</code> or <code>\autoref{}</code> to a label in an appendix, but it just shows up as empty with <code>\ref{}</code> and 'Section' with no number/letter for <code>\autoref{}</code>. </p>
  
  <p>I'm not sure if I'm misreading examples out there, or if I have a package conflict... </p>
  
  <pre class="lang-tex prettyprint-override"><code>% MainFile.tex
  Details of obfuscation of evil are provided in \autoref{app:One}.
  
  
  \appendix   
  
  \section{Obfuscating Evil via Optimized Confusion Matrix} \label{app:One}
  
  Recall that the ....
  </code></pre>
  
  <p>Shows up in <code>pdflatex</code> output as  "are provided in Section ." </p>