title: Converting a subversion repository to git, why am I seeing "fatal: not a valid object name"?
body: <p>I am seeing the following output while converting a subversion repo to git.</p>
  
  <pre><code>&gt; Found possible branch point: &lt;repo-url&gt;/trunk =&gt; &lt;repo-url&gt;/branches/CMT_PHASE3, 18441
  &gt; fatal: Not a valid object name refs/remotes/BlueSimViewer 5.0 20110316 Branch
  &gt; cat-file commit refs/remotes/BlueSimViewer 5.0 20110316 Branch: command returned error: 128
  </code></pre>
  
  <p>The command I am running to convert the repo is</p>
  
  <pre><code>&gt; git svn clone &lt;repo-url&gt; -A authors-transform.txt --stdlayout converted-git &gt; svnlog
  </code></pre>
  
  <p>This process has already converted 117 branches, some with spaces in their names. I first found <a href="https://stackoverflow.com/questions/11365317/git-svn-clone-fails-fatal-not-a-valid-object-name">this SO question</a>, which helped me move forward from a previous issue solved by git 1.8.x.x.</p>
  
  <p>Any insight as to the cause of this problem and possible ways of fixing it are greatly appreciated.</p>
  
  <p>I am running git version 1.8.1.1 on an Ubuntu 12.10 server. I am happy
  to provide any other information that would be helpful.</p>