gnus-art.el (gnus-article-describe-bindings): Add a comment

diff --git a/lisp/gnus/gnus-art.el b/lisp/gnus/gnus-art.el
index 0cf8ff05a33d0d33f6f0842a8b84c7bb098cae7b..402a06145cbc7bd017618c742bf14bce4c06ac2d 100644 (file)
--- a/lisp/gnus/gnus-art.el
+++ b/lisp/gnus/gnus-art.el
@@ -6680,6 +6680,8 @@ then we display only bindings that start with that prefix."
                    (with-current-buffer ,(current-buffer)
                      (gnus-article-describe-bindings prefix)))
                  ,prefix)))
+      ;; Loading `help-mode' here is necessary if `describe-bindings'
+      ;; is replaced with something, e.g. `helm-descbinds'.
       (require 'help-mode)
       (with-current-buffer (let (help-xref-following) (help-buffer))
        (setq help-xref-stack-item item)))))