Hold request update notification preferences on change
I would like to see an optional behavior that always updates the notification preferences set in unfulfilled holds when the users hold notification preferences are updated by staff or by the user.
This would solve the problem of needing to manually change the notification settings for all outstanding holds when a customers phone number changes, or they add an email address and want email hold notifications, or they add/change their sms number and carrier and want sms hold notifications, etc.
This should work for both catalog "my account" based changes along with staff client based changes.
There could be some limits to protect the one off hold notifications. For example, if a user has a default phone number set, but enters a different number for one hold, and then their default notification preferences get changed, update only the holds that had the old default phone number to the new default phone number and leave the others alone.