The Finance Buff (TFB), my former blog host, asked me some questions about the doc fix. I answered them. If this is something you want to learn more about, the Q&A and references provided at the end are a good place to start.
(No, I am not interrupting my vacation for this. I posted this in advance, timed to appear after TFB says the Q&A will post. Hopefully it all goes according to plan. If not, I apologize and I will sort it out in the new year.)