title: How to let a user modify a computed property in Vue?
body: <p>I'm collecting some data that I want to allow the user to download, and I'm trying to figure out the best approach for dealing with the filename. The default filename should be dynamic and based on the current date, so I figured that I need to create a <code>computed property</code> for it. I also want the user to have the option to change the filename. However, when I set that as the <code>v-model</code> on an input form, none of the changes inside the form register on the property. I can't figure out how I can capture that new value so I can later generate the file with it. I've tried various combinations of <code>v-model</code>and using multiple <code>computed properties</code>, yet none of them give me the intended result.</p>
  
  <p><a href="https://jsfiddle.net/p1e4fuqt/2/" rel="nofollow noreferrer">Here</a> is a jsfiddle with the minimum code needed to see my issue.</p>