title: Repeating user input in CLion console
body: <p>When I type something In CLion console when my app is reading some data(like <code>cin</code>),<br>
   my input is repeated even if app don't write anything to stdout.</p>
  
  <p>For example when i type <code>6</code>, I get another <code>6</code>, however my app don't write anything.  </p>
  
  <p>Why it happens? It's very annoying, so how can I turn it off?</p>