Erica why don’t you lump this in with the split screen feature? Split screen - #25 by Morgan_Newall
And then for users to check back to another state, have it similar to a git / diff-checker. UI would look similar to this https://www.diffchecker.com/
Or at least the left screen shows newer notes, right side older notes, and changes made
also I really like this idea too. The problem with a git style commit though is people won’t remember to do this.