request-query cache checks external-format

v1.3.13 - spr38589 - request query caches the parse of the supplied form
and now remembers the external format of the parse so that if the external
format argument to request-query changes the parse will be redone.

Are there user visible changes in this commit?  yes/no

Is bootstrapping needed?   no

Are tests included for new features?  no tests for new features

Tests run:  t-aserve

Change-Id: Ia99c421f1bcafb46828c32779a587fcd3ad0879d

main.cl

@@ -38,7 +38,7 @@
 #+ignore
 (check-smp-consistency)
 
-(defparameter *aserve-version* '(1 3 12))
+(defparameter *aserve-version* '(1 3 13))
 
 (eval-when (eval load)
     (require :sock)
@@ -2545,7 +2545,7 @@ in get-multipart-sequence"))
   ;;
   ;;
   (let ((alist (request-query-alist req))
-	(signature (cons post uri)))
+	(signature (list post uri external-format)))
 
     (if* (not (eq alist :empty))
        then (let ((given-sig (getf (request-reply-plist req)