[Emacs-diffs] master f15bbbe: Make `C-h b' work correctly in Gnus article buffer (bug#18257)

[Katsumi Yamaoka]

branch: master
commit f15bbbec0b11be7bbcde83cf905875b61f24e8bb
Author: Katsumi Yamaoka <address@hidden>
Commit: Katsumi Yamaoka <address@hidden>

    Make `C-h b' work correctly in Gnus article buffer (bug#18257)
    
    * lisp/gnus/gnus-art.el (gnus-article-describe-bindings):
    Ignore summary commands that aren't bound to
    gnus-article-read-summary-keys keys (bug#18257).
---
 lisp/gnus/gnus-art.el |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lisp/gnus/gnus-art.el b/lisp/gnus/gnus-art.el
index a0f1440..43e1231 100644
--- a/lisp/gnus/gnus-art.el
+++ b/lisp/gnus/gnus-art.el
@@ -6846,17 +6846,21 @@ then we display only bindings that start with that 
prefix."
   (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)))
-        (current-local-map)))
+            (set-keymap-parent parent summap))
+        summap))
       (set-keymap-parent map (key-binding "S"))
       (let (key def gnus-pick-mode)
        (while sumkeys