I tried the second one, it seemed to work.
I had a post open with the old link, ran that, looked again and the links appeared to be correct, but when I went to look at it via edit, they were still the old link.
it changed how it appeared visibly in the post, but not the actual url.

"No matter where you go, there you are."
"If you can't do something smart, Do something right"
"There are three kinds of people in the world, those who can count, and those who can't"