title: Paperclip has cached an old setting. How do I refresh it?
body: <p>I updated a thumbnail size for my Photo model.</p>
  
  <p>Worked great on my local, and deployed it to production.</p>
  
  <p>Unfortunately, even if I run reprocess on a specific Photo it still reprocesses to the old params.</p>
  
  <p>If I check <code>Photo.photo.styles</code> it returns the correct new styles, but if I set that Photo to reprocess, it refuses to abide by the settings I applied.</p>
  
  <p>How do I clear paperclip's cache? If it isn't paperclip that's caching it, what possibly could be doing that?</p>
  
  <p>I'm not using delayed_jobs to do this, but I have restarted that as well.</p>
  
  <p>Any ideas?</p>