title: Django collectstatic not overwriting production files
body: <p>I have collectstatic --noinput running each time I push to Heroku. New files get copied, but old files with changes don't get overwritten. Deleting a file and pushing to heroku however, replaces that one specific file as expected.</p>
  
  <p>How can I get collectstatic to overwrite files with changes?</p>