title: SVN: Error setting property 'log': Could not execute PROPPATCH
body: <p>I am trying to do a simple commit in SVN (I'm using Cornerstone on a Mac). The commit fails with the following error:</p>
  
  <p>Description : An error occurred while contacting the repository. [...]
  Error : V4CommunicationError [...]
  Description : At least one property change failed; repository is unchanged
  Status : 175008 [...]
  Description : Error setting property 'log': 
  Could not execute PROPPATCH.
  Status : 175002 [...]</p>
  
  <p>I have tried reinstalling Cornerstone, and I have tried checking out the repository to another directory and committing from there.</p>