title: what does this message mean? more than one branch.<name>.remote
body: <p>In the output from <code>git remote show origin</code>, I see this message:</p>
  
  <pre><code>warning: more than one branch.main_int.remote
  </code></pre>
  
  <p>A more canonical example would be:</p>
  
  <pre><code>warning: more than one branch.master.remote
  </code></pre>
  
  <p>What does this mean? Is it bad, and how do I fix it, if it is bad?</p>