Heratech

To solve this delete the svn:special property by doing this:

svn propdel svn:special FILETOCHANGE

You can also use svn proplist FILETOLOOKAT to see the svn properties on that file.

I had just used this script: http://arctic.org/~dean/scripts/unln to unlink but keep a copy of the symlinked file.
Seems to work quite well.