(let ((cite-button (insert-button cite-button-text)))
(button-put cite-button 'invisibility-spec invis-spec)
(button-put cite-button 'action 'notmuch-toggle-invisible-action)
(let ((cite-button (insert-button cite-button-text)))
(button-put cite-button 'invisibility-spec invis-spec)
(button-put cite-button 'action 'notmuch-toggle-invisible-action)