Update spec w.r.t issue 69 #45
Description
From minutes 2025-11-07:
A discussion about the usefulness of optional parts of a struct starts.
The changed reply, however, should always include all struct members.
It turns out, that optional struct members are part of the spec already,
just that the issue would introduce a breaking change.
Consensus seems to leave this at the current state and close the Issue.
An example seems to be missing in the spec.