Cynthia surmised that when they did appear, they were oversights on the part of the writer who unconsciously placed them as if she were writing in a normal, un-coded fashion.
Siegfried's whole character and career is, indeed, annihilated in the clumsy progress towards this consummation; but Shakespeare might have condoned worse plots for the sake of so noble a result; and indeed Wagner's awkwardness arises mainly from fear of committing oversights.
To prevent being blamed by him or others for any disingenuity in not acknowledging my oversights or slips in the first edition, I believe it will not be amiss to print next after the old Praefatio ad Lectorem, the following account of this new Edition.
Sometimes mishaps happen because of simple oversights.