;; that when we modify map it does not modify widget-keymap).
(let ((map (make-composed-keymap (list (make-sparse-keymap) widget-keymap))))
(set-keymap-parent map notmuch-common-keymap)
+ ;; Currently notmuch-hello-mode supports free text entry, but not
+ ;; tagging operations, so provide standard undo.
+ (define-key map [remap notmuch-tag-undo] #'undo)
map)
"Keymap for \"notmuch hello\" buffers.")