Breaking persistent undo shows Neovim can't be trusted

It's not exactly good style to break a longstanding feature that also persists data - even more so if that feature is called "persistent undo".

But also... has this man never heard of Git (or another VCSes)? Writing entire books and only relying on the undo functionality for tracking changes seems awfully cumbersome and risky.

A Godwin so pure it wants to be framed!