Commit the journal to the point where the snapshot was taken.  This
        will merge in any changesets that were recorded *after* the snapshot changeset.

def commit(self, snapshot: Tuple[Hash32, UUID]) -> None:
        """
        Commit the journal to the point where the snapshot was taken.  This
        will merge in any changesets that were recorded *after* the snapshot changeset.
        """
        _, account_snapshot = snapshot
        self._account_db.commit(account_snapshot)