The child state's MLS epoch.
Serialized child ClientState, captured before any secret zeroing.
Child node tag (hex of the child state's confirmation tag).
Serialized commit MlsMessage that produced the child.
SHA-256 of commitBytes.
Parent node tag (must already be in the tree).
OptionalsenderThe committer's MLS leaf index, when known.
An edge plus its child's pre-serialized snapshot, captured at the moment the child state is produced (see GroupHistoryTree.recordEdge). Fork recovery emits these so loser branches are retained with pristine snapshots.