--- gnus-art.el~	2017-01-25 22:07:29.825734200 +0000
+++ gnus-art.el	2017-01-26 08:10:00.743177500 +0000
@@ -6846,16 +6846,20 @@
   (let ((keymap (copy-keymap gnus-article-mode-map))
 	(map (copy-keymap gnus-article-send-map))
 	(sumkeys (where-is-internal 'gnus-article-read-summary-keys))
+	(summap (make-sparse-keymap))
 	parent agent draft)
     (define-key keymap "S" map)
     (define-key map [t] nil)
+    (define-key summap [t] 'undefined)
     (with-current-buffer gnus-article-current-summary
+      (dolist (key sumkeys)
+	(define-key summap key (key-binding key (current-local-map))))
       (set-keymap-parent
        keymap
        (if (setq parent (keymap-parent gnus-article-mode-map))
 	   (prog1
 	       (setq parent (copy-keymap parent))
-	     (set-keymap-parent parent (current-local-map)))
+	     (set-keymap-parent parent summap))
 	 (current-local-map)))
       (set-keymap-parent map (key-binding "S"))
       (let (key def gnus-pick-mode)