title: Save my work for later and revert to HEAD revision
body: <p>I know this might be a very basic question about SVN, but it's hard to search for it with few words.</p>
  
  <p>Let's say I'm working on a ticket <code>#2015</code> where I had to make changes in the files <code>index.html</code> and <code>app.js</code>, but for some reason this ticket is now impeded and I'm waiting for something so I can continue to work on it.</p>
  
  <p>So to not be idle, now I will start to work on ticket <code>#2047</code> let's say, which will include changes to file <code>blue-theme.css</code> and also <code>index.html</code>.</p>
  
  <p>Assuming that I'm working with Subversion, which are the most appropriate operations I could use to not lose my work on ticket <code>#2015</code>, but also not commit those changes to file <code>index.html</code> as if they belong to ticket <code>#2047</code>?</p>