phranque - 12:51 am on Nov 27, 2012 (gmt 0)
what happens when you request the following?
It does a redirect.
what does it redirect to?
do you have any ampersands, encoded or not, in the query string or is it always the simple case of a single "parameter%3Dvalue"?
if you don't have to loop, remove the [N] flags.
then you can just drop through to the subsequent rulesets.
also remove the ampersand ruleset.
assuming you edited www.example.com to your canonical hostname...