title: Jenkins: invalid version of SVN working copy
body: <p>Our build server runs Jenkins 1.502 with Subversion plugin upgraded to version 1.45. This plugin uses <code>svnkit-1.7.6-jenkins-1.jar</code>.</p>
  
  <p>Also we have SVN client 1.7.8 installed.</p>
  
  <p>Jenkins successfully checks out source code from SVN repository. But when I go to workspace directory and try to run some svn command manually, it fails:</p>
  
  <pre>
  # cd /var/lib/jenkins/jobs/myproject/workspace/
  # svnversion
  svn: E155036: Working copy '/var/lib/jenkins/jobs/myproject/workspace' is too old (format 8, created by Subversion 1.4)
  </pre>
  
  <p>The error message indicates that working copy was created by SVN 1.4, but version of svnkit is 1.7.6. How could it be?</p>
  
  <p>I searched entire file system, there are no any other <code>svnkit-*.jar</code> files.</p>