title: How do I undo a tortoisesvn update
body: <p>I am trying to retrieve my working copy of a file before updating to a new revision. The problem is somehow tortoise messed things up and now a days work worth of code is uncompilable.</p>
  
  <p>I tried updating to the previous revision, yet I got so many conflicts that I cannot fix since SVn literally merged all the text together.</p>
  
  <p>Does Tortoise SVN versions a file locally before doing an update, and where can I find the file. I tried looking under .svn\prestine but I could only find an old version of my code.</p>
  
  <p>Can someone please help.</p>