title: Rails, Globalize3 check if translated attributes changed?
body: <p>In Rails we can check if a model attribute is changed, using <code>obj.field_changed?</code>.</p>
  
  <p>Say I have a model that uses <code>Globalize3</code>. </p>
  
  <p>It has <code>translates :name</code></p>
  
  <p>How can I check if the name attribute got changed?</p>
  
  <p>Something like <code>obj.name_changed?</code>  </p>