Folds per-member protection states into the aggregate a multi-device target answers: a never-configured member reads as disabled, and any per-field divergence folds to null (the mixed marker).
null
One state (or null) per member.
The aggregated state.
Folds per-member protection states into the aggregate a multi-device target answers: a never-configured member reads as disabled, and any per-field divergence folds to
null(the mixed marker).