Bug. Wrong string entity.
Bug. Wrong string entity.

'Newsletter.SubscriptionSubmitted' is already used for "Subscription submitted!" text.
silverstripe-archive/silverstripe-newsletter,silverstripe-archive/silverstripe-newsletter,silverstripe-labs/silverstripe-newsletter,silverstripe-labs/silverstripe-newsletter,silverstripe-labs/silverstripe-newsletter,guru-digital/silverstripe-newsletter,guru-digital/silverstripe-newsletter,guru-digital/silverstripe-newsletter