The fact, that he ‘forgot’ to pardon himself, may indicate he was not doing it personally, but someone in his name. (skipping him as a revenge?!?)

Anyway, question now is, can it be proven, he didn’t do it himself, or that he was no aware, of what he was doing. If yes, then all pardons would automatically be void is my guess?

This is just a speculation on my side, didn’t see this posted anywhere, so probably not viable idea, but throwing it out there anyway 😉