theSnapshotConfigSurvivesAReopen

The snapshot config on the far side of a restart, which is the only side it is ever read on.

RaftEngine reads meta.config in exactly one place on the load path — seeding state.snapshotConfig during start-up restore — so an adapter that keeps the metadata in a live field and persists only lastIncludedIndex / lastIncludedTerm is green on snapshotConfig_roundTrips and loses the membership baseline on every restart, silently: null is a legal value here (the covered prefix carried no config change), so the engine has nothing to refuse. The node comes back under its bootstrap configuration.

Same fixture as snapshotConfig_roundTrips for the reason its KDoc gives; the interesting difference is only the boundary it crosses.