title: How should I restart spring in Rails 6
body: <p>I'm going through the <a href="https://pragprog.com/book/rails6/agile-web-development-with-rails-6" rel="noreferrer">Agile Web Development with Rails 6</a> book and I got to the end of an "Iteration" and did <code>bin/rails test</code> and got a horrible long ugly dump somewhere in fixtures.  (I'm not new to Rails ... just trying to catch up on all the new toys in Rails 6 and refresh).</p>
  
  <p>I made sure all my code matched the sample code and then finally did <code>ps -ef | grep -i spring</code> and found three processes -- one of the 24 hours old.  I killed them with just <code>kill &lt;pid&gt;</code> and then did <code>bin/rails test</code> and all was fine.</p>
  
  <p>I realize that "in theory" I am not suppose to need to tell <code>spring</code> to restart but obviously sometimes you do.  So, what is the prescribed method for restarting <code>spring</code>?</p>