title: Resetting autoincrement in h2
body: <p>I'm testing a controller that returns a json response but the tests
  fail after the first time because the h2 database does not reset the
  auto increment id.
  Using fixtures or creating objects manually has a same problem.</p>
  
  <pre><code>@Before
  public void setUp() {
      Fixtures.deleteAllModels();
      Fixtures.loadModels("data.yaml");
  }
  </code></pre>
  
  <p>How to solve this problem?</p>