title: Remove unnecessary svn:mergeinfo properties
body: <p>When I merge stuff in my repository Subversion wants to add/change a lot of <code>svn:mergeinfo</code> properties to files that are totally unrelated to the things that I want to merge. </p>
  
  <p>Questions about this behaviour have been asked before here on Stack Overflow:</p>
  
  <ul>
  <li><em><a href="https://stackoverflow.com/questions/391864/svn-mergeinfo-properties-on-paths-other-than-the-working-copy-root">SVN Mergeinfo properties on paths other than the working copy root</a></em></li>
  <li><em><a href="https://stackoverflow.com/questions/622409/tortoisesvn-using-svnmergeinfo-is-there-a-way-to-turn-it-off">Is there a way to turn TortoiseSVN using svn:mergeinfo off?</a></em></li>
  </ul>
  
  <p>From what I understand from the topics mentioned above it looks like a lot of files in my repository have explicit <code>svn:mergeinfo</code> properties on them, when they shouldn't. The advice is to reduce the amount and only put those properties on relevant files/folders.</p>
  
  <p>So now my question: how can I easily remove those unneeded properties? I'm using TortoiseSVN, but I am reluctant to manually check/fix hundreds of files. Is there an easier way to remove those unnecessary <code>svn:mergeinfo</code> properties?</p>
  
  <p>P.S. I'm <strong>not</strong> looking for C++ SVN API code.</p>