correct the dedup code

actionpack/lib/action_dispatch/journey/scanner.rb

@@ -33,7 +33,7 @@ module ActionDispatch
       end
 
       private
-      
+
         # takes advantage of String @- deduping capabilities in Ruby 2.5 upwards
         # see: https://bugs.ruby-lang.org/issues/13077
         def dedup_scan(regex)
@@ -58,9 +58,9 @@ module ActionDispatch
             [:SYMBOL, text]
           when text = dedup_scan(/\*\w+/)
             [:STAR, text]
-          when text = dedup_scan(/(?:[\w%\-~!$&'*+,;=@]|\\[:()])+/)
+          when text = @ss.scan(/(?:[\w%\-~!$&'*+,;=@]|\\[:()])+/)
             text.tr! "\\", ""
-            [:LITERAL, text]
+            [:LITERAL, -text]
             # any char
           when text = dedup_scan(/./)
             [:LITERAL, text]