title: Box.com api - If we change tags for a file... does the modified_at or content_modified_at change too?
body: <p>In Box.com they have "tags" for a file object</p>
  
  <p>I'm wondering if the <code>file.info.modified_at</code> or <code>file.info.content_modified_at</code> will be updated along with the tags? </p>
  
  <p>Looks like not when I tried it... i updated tags and those dates did not change.</p>
  
  <p>How then do I know if the tags field has been updated so I can act accordingly? I would have to diff the Tag fields of old and new and that would cause extra network usage not desired. </p>