title: pre-revprop-change hook in TortoiseSVN
body: <p>Total newbie to TortoiseSVN here. I need to change a log message for some commits I made to subversion. I only want to make my changes and then have everything go back to the way it was before, meaning you can't change anything after the commit.</p>
  
  <p>According to this post (<a href="https://stackoverflow.com/questions/197224/what-is-a-pre-revprop-change-hook-in-svn-and-how-do-i-create-it/197240">What is a pre-revprop-change hook in SVN, and how do I create it?</a>), I understand you have to create a pre-revprop-change.bat file to do this. </p>
  
  <p>My question is if I just add this bat file, make the changes to the log messages, and then remove the bat file, will the settings  go back to the previous state (ex. log messages uneditable)..   or do I have run the bat file myself and then come up with another script to undo the changes?  </p>
  
  <p>Thanks!</p>