title: Unable to merge between branches in SVN due to "Invalid character '[]' found in range list"
body: <p>I encounter this issue pretty consistently when trying to merge a branch back into the trunk in TorstoiseSVN 1.5.  Update and commit to both branch and trunk have no issue, its not until I try to merge that I get the:</p>
  
  <pre><code>Invalid character '[]' found in range list 
  </code></pre>
  
  <p>Sometimes it occurs only using one merge method, primarily "merge a range of revisions", which then I get around by doing a "Reintegrate a branch", its a real problem when both methods return that error effectively preventing me from merging at all.</p>
  
  <p>In this context what is the range list referring to and how do invalid characters get in there?</p>