_form</span><span class='lparen'>(</span><span class='id identifier rubyid_query_string_params'>query_string_params</span><span class='rparen'>)</span>
  <span class='kw'>if</span> <span class='id identifier rubyid_query_string'>query_string</span><span class='period'>.</span><span class='id identifier rubyid_to_s'>to_s</span><span class='period'>.</span><span class='id identifier rubyid_strip'>strip</span> <span class='op'>!=</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='