Hello from the bizarro universe of people who do this all the time and can't imagine the opposite. Do you never rewrite some code only to realize it didn't precisely capture all the edge cases of the thing you rewrote? In those cases I use the git gutter in VSCode to view what the old code looked like and compare and contrast to the new version to see what I missed. It seems to me that that's the same as what these engineers are doing, just with a bit more primitive tooling.
Can't imagine how anyone doesn't do this - unless there's just a race of God-programmers I've never encountered that write everything perfect the first go. But I don't think so. :-)
Can't imagine how anyone doesn't do this - unless there's just a race of God-programmers I've never encountered that write everything perfect the first go. But I don't think so. :-)