title: git-svn clone fails "fatal: Not a valid object name"
body: <p>Whilst doing <code>git svn clone -s https://svn.example.com/repo/</code> I received the following output:</p>
  
  <pre><code>r3073 = a6132f3a937b632015e66d694250da9f606b8333 (refs/remotes/trunk)
  Found possible branch point: https://svn.example.com/repo/trunk =&gt; https://svn.example.com/repo/branches/v1.3, 3073
  W: Refspec glob conflict (ref: refs/remotes/trunk):
  expected path: repo/branches/trunk
      real path: repo/trunk
  Continuing ahead with repo/trunk
  W: Refspec glob conflict (ref: refs/remotes/trunk):
  expected path: repo/branches/trunk
      real path: repo/trunk
  Continuing ahead with repo/trunk
  W: Refspec glob conflict (ref: refs/remotes/trunk):
  expected path: repo/branches/trunk
      real path: repo/trunk
  Continuing ahead with repo/trunk
  W: Refspec glob conflict (ref: refs/remotes/trunk):
  expected path: repo/branches/trunk
      real path: repo/trunk
  Continuing ahead with repo/trunk
  fatal: Not a valid object name refs/remotes/tags/Sync Controllers
  cat-file commit refs/remotes/tags/Sync Controllers: command returned error: 128
  </code></pre>
  
  <p>Running <code>git branch -a</code> gives:</p>
  
  <pre><code>remotes/tags/Sync%20Controllers
  remotes/tags/v1.1
  remotes/trunk
  remotes/v1.2
  </code></pre>
  
  <p>I think the problem is that "remotes/tags/Sync Controllers" != "remotes/tags/Sync%20Controllers".</p>