A question about snapshot

Normally you take a snapshot to keep an archive copy when you edit the text.

I’m sometimes in the opposite situation. I’ve edited some text and want to go back in history (with undo), but want to keep the edited text.
But when I make a snapshot of the edited text the undo stack is ‘emptied’ and the history of the changes is lost - is this normal?
I can of course make a copy of the text in the notes pane…


The undo stack gets cleared in various situations, but taking a single snapshot isn’t one of them, so this should work - is there anything else in particular you are doing?


I tested it and it works, but I’m sure it doesn’t work in other occasions.
I’ll try to keep track of it and I’ll let you know when and how it happens.