While trying to edit a topic in a web that I had copied over from another site, I got referred to
this "oops" URL.
However, the server processing this URL (Apache/2.2.0 with mod_security enabled) gave me a "406 Not Acceptable" error.
It appears that some of the
%
signs in that URL are being used in a way that mod_security's
URL encoding validation system doesn't like.
(The underlying RCS error is, I assume, my fault and not TWiki's.)
Interesting; it would appear that CGI.pm's urlencoding isn't playing ball with mod_security.
This needs to be passed on to CGI and/or mod_security. It's not a TWiki problem, per se, as the URL encoding is correct.
CC