title: How to avoid repeated executions of the same event?
body: <p>The events of my component work well until I do the following:</p>
  
  <ol>
  <li>Change of screen by clicking on a menu of options and through the
  router access to another component. </li>
  <li>I go back to my original
  component.</li>
  </ol>
  
  <p>When i do that, my component's events duplicated.
  So, for example, the handleAddTask event is executed as many times as clicks have done on other menu options.
  If I do not fire any routing to another module, then the events work well and do not duplicate.</p>