Query string is always being appended

[webprogrammer Profile]

I did not add the QSA option but it seems that the querystring is still being appended to the url when rewriting. This does not seem to be happening to every url.

here's the full rule:

RewriteCond %{REQUEST_METHOD} (?:GET|HEAD|POST)
RewriteCond %{QUERY_STRING} ^(.+)$ [NC]
RewriteRule ^(?!admin)(.*?_cdo)(.*?\.html?)(.*) /$1$2&%1 [NC]

here's the source url:
library/article_cdo/aid/1923/section/Multimedia.htm?gclid=COC4u4DwhrYCFe1lOgod6EAAgg

this is what it rewrites to:
/library/article_cdo/aid/1923/section/Multimedia.htm&gclid=COC4u4DwhrYCFe1lOgod6EAAgg?gclid=COC4u4DwhrYCFe1lOgod6EAAgg

How can I block the query string from being added?

[webprogrammer Profile]

I found the answer here:
http://www.helicontech.com/forum/13986-Remove_query_string_from_escaping_url.html#63567

(tried searching first, guess google search works better )