Bounded Context for the Wikimedia Deutschland fundraising address change (sub-)domain.

• When exporting address-related records (donation, membership, subscription), each record has a random UUID that can be used to reference address changes to that record in the future.
• Users can get links to the address change page, each link being secured with the UUID that identifies the address change.
• Whenever an address changes, its UUID is regenerated.
• Whenever an address changes, it is marked as modified (by tracking creation vs modification date). Only the last modification date is recorded.
• Address changes are exported as individual records, with current and previous UUID.