Such an interesting post, Squidge. In general, if I find myself changing something then changing it back again, it’s usually because that isn’t really the problem, and there’s something slightly different which I actually need to fix.
For example, I might fiddle around with a sentence structure or a word choice and then realise the real problem is that I’m not actually even clear what I’m trying to say in that paragraph.
Or I might edit and “unedit” the order or pacing of particular beats in a scene before realising that scene itself isn’t working and needs to be radically overhauled.
Editing can be a rabbit hole though, right? We can tinker forever, growing more blind all the time!