title: Vue router keep-alive and mounted behavior
body: <p>I had some logic in the <code>mounted()</code> method before I started using <code>&lt;keep-alive&gt;</code>. For instance: <code>document.title = this.title</code>. Now the title changes upon the first load only.</p>
  
  <p>I could listen for route changes, but it won't work when you land on the page.</p>
  
  <p>What is the proper way to detect loading of another component in <code>&lt;keep-alive&gt;</code>?</p>