title: git svn fetch -- Checksum mismatch | git svn log -- fatal: bad revision 'HEAD'
body: <p>I initialized a new git repository with a url that pointed to an existing svn repo.  </p>
  
  <pre><code>$ git init http://xxxxx/svn
  </code></pre>
  
  <p>I then executed 'git svn fetch'.  </p>
  
  <pre><code>$ git svn fetch
  </code></pre>
  
  <p>This was working great (revisions were being imported one by one) until i got an error.  I had to stop and start the fetch process several times because there are a large number of revisions in the svn repo.  I recently got the following error and i am not able to continue.</p>
  
  <pre><code>$ git svn fetch
  Checksum mismatch: xxx/yyy/zzz.java 091f277343646871f019a159af895ed5943ce0fc
  expected: 5fad939c76344afa9fa088fa843aba5e
       got: 8bc1f834ffce935fa67cc5cde94a9e14
  </code></pre>
  
  <p>Now every time i try to execute 'git svn fetch', i get the error above.</p>
  
  <p>I have tried to get the last revision of the file but that fails as well.</p>
  
  <pre><code>$ git svn log xxx/yyy/zzz.java
  fatal: bad revision 'HEAD'
  rev-list --first-parent --pretty=medium HEAD --: command returned error: 128
  </code></pre>
  
  <p>I have also tried the following:</p>
  
  <pre><code>$ git svn reset -r##### -p
  fatal: bad revision 'HEAD'
  rev-list --first-parent --pretty=medium HEAD --: command returned error: 128
  </code></pre>
  
  <p>What can i do to resolve this issue?</p>