title: How do you continue working off an old revision in subversion when you forgot to make a new branch
body: <p>duplicate: <a href="https://stackoverflow.com/questions/611879/how-do-i-roll-back-all-or-part-of-a-commit-to-svn">How do I roll back all or part of a commit to svn?</a></p>
  
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  <p>I've set up an account at <a href="http://www.projectlocker.com/" rel="nofollow noreferrer">http://www.projectlocker.com/</a> for one of my projects. I'm the only person working on it but I figured having version tracking would still be useful, and it's a good learning experience. I've setup the standard folder structural with /trunk/, /branches/, /tags/.</p>
  
  <p>So say you are working on the trunk and realize that you really messed some stuff up but you want to go back a few revisions and continue from there. I can update to a previous revision and start to make changes, but the server will not allow me to commit unless I update from the last revision which will also bring in all the unwanted changes. So how do I both go back to a previous revision and then continue working on the trunk from there? Do I somehow merge an old revision into the latest revision?</p>
  
  <p>I'm using the AnkhSVN plugin for visual studio so I'd appreciate and answer that explains how to do it in that client, but I'm sure I can figure out the actual button clicks from a more conceptual answer.</p>