title: Android Studio modifies ./idea/vcs.xml at startup
body: <p>since it's not recommended to ignore the entire .idea folder in Android Studio most files in there are tracked by git.
  The strange thing however is that, after every launch, the same line is added to vcs.xml even if there are already dozens of them.</p>
  
  <pre><code>&lt;mapping directory="$PROJECT_DIR$" vcs="Git" /&gt;
  </code></pre>
  
  <p>This gets old pretty quickly.</p>
  
  <p>Is there a purpose for this behaviour or is it simply a bug?
  Further can Android Studio be prevented from doing such modifications when it is launched?</p>
  
  <p>Thanks in advance.</p>
  
  <p>Edit: Also ./idea/misc.xml constantly changes between <code>JDK_1_7</code> and <code>JDK_1_8</code>.</p>