title: Visual Studio 2015 Preview - Can't commit with Git
body: <p>I can't commit my projects from Visual Studio 2015 Preview.</p>
  
  <p>When I press the <code>Commit</code> button from the Team Explorer window, I get this error message :</p>
  
  <p><img src="https://i.stack.imgur.com/JTDgF.png" alt="enter image description here"></p>
  
  <p>The last sentence in english : <em>The process cannot access the file because it is being used by another process.</em></p>
  
  <p>I couldn't find if any other process actually use the specified file.</p>
  
  <p>In Visual Studio 2013, everything works fine. So actually I'm switching between VS2015 and VS2013 everytime I need to commit some changes made on a project, but it's a real waste of time.</p>