This includes a migration to change mailtrigger slugs to be up to 64
characters instead of 32, as some slugs would not fit and require clunky
abbreviations.
A data migration creates triggers for existing teams, and they are also
created on the fly if a trigger does not exist yet, providing a safe
fallback for new review teams. The review_completed mailtrigger serves
as the template for new triggers.
This commit also includes tests for gather_address_lists(), as none
existed.
Commit ready for merge.
- Legacy-Id: 16680