refs https://github.com/TryGhost/Team/issues/754
closes https://github.com/TryGhost/Ghost/issues/13088
refs a7dec233ba
- The corrupted data recovery mechanism for notifications is needed to be able to fix the data stored in `settings` table under `notifications` key. There was no validation in place, which has caused some instances to store data in unreadable/writable state
- The recovery mechanism is in place to avoid adding migrations every time we spot a broken notifications data (will be fixed by validation soon).
- The notification data is also NOT critical but valuable for system functioning properly, that's the reason why the data "healing" happens in less secure "fire-and-forget" way
- The referenced commit is where the "bigger" problem that was causing the data corruption was at. This change is a "cleanup" after what has happened there - storing Ghost error object in `value` for `notifications` key
b5fb439ae7