Very handy, and not as scary as I first thought. I'll add that to fix the error I had to replace the svn-base file and the file itself. E.g: say I have this directory:
+-trunk/ | |-file.java | +-.svn/ | +-text-base/ | |-file.java.svn-base
I had to copy both file.java.svn-base and file.java in order to resolve the checksum mismatch.