title: Why does git add&remove the Storyboard <classes> section repeatedly?
body: <p>When saving the storyboard and committing the changes to git, the chances are good that the whole <code>&lt;classes&gt;</code> section will be removed from or added to source control (git). I am using git on the command line, not the XCode integrated UI.</p>
  
  <p>First it looks like this:</p>
  
  
  
  <pre class="lang-none prettyprint-override"><code>+    &lt;classes&gt;
  +        &lt;class className="CPTGraphHostingView" superclassName="UIView"&gt;
  +            &lt;source key="sourceIdentifier" type="project" relativePath="./Classes/CPTGraphHostingView.h"/&gt;
  +        &lt;/class&gt;
  ...
  +    &lt;/classes&gt;
  </code></pre>
  
  <p>And in the next commit it looks like that:</p>
  
  <pre class="lang-none prettyprint-override"><code>-    &lt;classes&gt;
  -        &lt;class className="CPTGraphHostingView" superclassName="UIView"&gt;
  -            &lt;source key="sourceIdentifier" type="project" relativePath="./Classes/CPTGraphHostingView.h"/&gt;
  -        &lt;/class&gt;
  ...
  -    &lt;/classes&gt;
  </code></pre>
  
  <p>Why is that, and, more importantly: how can I stop that?</p>