The database IDs are internal and should never be exposed. Also exposing the IDs in invoices makes testing needlessly complicated, as the ID changes with every run.
Very strictly speaking this is a breaking change, but I seriously hope we never used this ID
Checklist
[x] Categorize the PR by setting a good title and adding one of the labels:
bug, enhancement, documentation, change, breaking, dependency
as they show up in the changelog
The database IDs are internal and should never be exposed. Also exposing the IDs in invoices makes testing needlessly complicated, as the ID changes with every run.
Very strictly speaking this is a breaking change, but I seriously hope we never used this ID
Checklist
bug,enhancement,documentation,change,breaking,dependencyas they show up in the changelog