Ctrl-Z performs multiple undoes

The basic situation is that when I'm writing a document, I am also often editing as I go along. Sometimes I'll realize I just made a change that I don't like and I want to revert to the text I just changed, so I use Ctrl Z to reverse the last change. However, instead of reversing just the last change, FM is reversing all the changes made since the last save. Ctrl Z is only supposed to undo the last change, and that's mostly how it works. Except sometimes it doesn't.

The messing with my workflow mostly means that my thought processes just got derailed in a big way instead of a little one. The redo does bring back all the changes I made, but that means including the most recent change I made that I was trying to reverse, so now I have to remember what it was I wanted there because I can't simply undo the one change. Since it undoes all changes back to the last save, I could work around it by saving after every change, but that also means a break in my concentration and flow of thought out my fingers.

I hadn't checked that pod out because I usually only pay attention to it if there are a lot of changes to make. I suppose it's a workaround, but it takes longer than the Ctrl Z that is basically part of my muscle memory.