title: Why hudson/jenkins tries to make commit?
body: <p>I'm using Hudson to clone a Git repository and build it. I'm getting the following error:</p>
  
  <pre><code>FATAL: Could not apply tag jenkins-mus-tomcat-2-2
  hudson.plugins.git.GitException: Could not apply tag jenkins-mus-tomcat-2-2
  </code></pre>
  
  <p>It's strange because I don't want Hudson to make any commits. It should only pull and compile.</p>
  
  <p>What's the problem and how can I fix it?</p>