Arrays in query params break WordPress as of latest upgrade

[singpolyma]

I just upgraded Wordpress to 3.3.2, and one of my plugins (wp-diso-actionstream) broke, because some of its URLs expect ?include[]=blah (that is, an array in the query string), which messes up wp-includes/canonical.php:283

I have replaced the line with:

if(!is_array($_parsed_query)) $_parsed_query = array_map( 'rawurlencode', $_parsed_query );

and now it works, but I'm not sure what the right solution would be.

[SergeyBiryukov]

#20143