title: tortoisesvn status:obstructed
body: <p>i was doing an svn update, and a couple folders suddenly became obstructed, and cleanup was useless - it reported locks that i couldn't find or release. i ended up deleting the offending folders and cleanup worked.</p>
  
  <p>i think i understand that svn wasn't able to compare subfolders or something...</p>
  
  <p>my question is: how did they get that way; is it a local change that caused it, or could it have been another teammate committing something? is my svn client out of date?</p>