andrew_nyc said:

The useful move here is to separate what is established from what is widely repeated.

Coming at andrew_nyc’s question from a different direction. Take it one variable at a time. Almost every unanswerable question in these threads is unanswerable because three things changed in the same fortnight, and no amount of subsequent argument can untangle them after the fact.

If somebody has the primary source to hand I would rather cite it than paraphrase it.

One concrete data point for the thread. Practical: whatever you change, write down the date and the reason. In three months the reason is what you will have forgotten, and the reason is what makes the record worth having.

One thing that is still open after andrew_nyc’s answer:

Was that from a primary source or from a summary of one?

labquiet_amy said:

Practical: whatever you change, write down the date and the reason.

This is where I part company with the consensus forming above. The counter-case has not been addressed. Somebody upthread described the situation that does not fit, and the thread moved on rather than engaging with it, which is the failure mode this board is supposed to avoid.

labquiet_amy said:

Practical: whatever you change, write down the date and the reason.

No disagreement, though the timescale matters more than the mechanism here. Most of what looks like a difference in kind turns out to be a difference in how long somebody waited.