title: why use branches in svn?
body: <p>i know that you could organize your files according to this structure in svn:</p>
  
  <p>trunk
  branches
  tags</p>
  
  <p>that you copy the trunk to a folder in branches if you want to have a seperate development line. later on you merge this branch back to trunk.</p>
  
  <p>but i wonder why me and my group should do this. why should one copy the trunk to a branch and work with this copy just to merge it back to the trunk, and mean while the code is frequently updated/commited to stay in sync with the trunk. why not just work with the trunk then?</p>
  
  <p>what is the benefits with creating a branch?</p>
  
  <p>would be great if someone could shed a light on this topic.</p>
  
  <p>thanks in advance</p>