A checkout of https://gplv2.svn.sourceforge.net/svnroot/gplv2/htdocs results in:
svn: REPORT request failed on '/svnroot/gplv2/!svn/vcc/default'
svn: REPORT of '/svnroot/gplv2/!svn/vcc/default': 400 Bad Request (https://gplv2.svn.sourceforge.net)
It still creates the local directory, but "svn status" indicates that it is out of date; a subsequent "svn update" rehashes the error above...