The source node in most cases contains the sample message as written by the developer. If it looks like a dot-delimitted string such as "form.label.firstname", then the developer has not provided a default message.

Done Terminé key: product_tour.button.done Exit tour Quitter la visite key: product_tour.button.exit Next Suivant key: product_tour.button.next Skip Ignorer key: product_tour.button.skip Cannot load product tour Impossible de charger la visite key: product_tour.message.error.get_tour_template Cannot mark tour as completed Impossible de marquer la visite comme terminée key: product_tour.message.error.mark_as_completed