I would like to quote for you from Gnu.org, Richard Stallman's organization that invented the idea of free software. Here he explains what that means. I'll link to the full webpage below.

"Actually, we encourage people who redistribute free software to charge as much as they wish or can.** If a license does not permit users to make copies and sell them, it is a nonfree license.** If this seems surprising to you, please read on.

The word “free” has two legitimate general meanings; it can refer either to freedom or to price. When we speak of “free software,” we're talking about freedom, not price. (Think of “free speech,” not “free beer.”) Specifically, it means that a user is free to run the program, study and change the program, and redistribute the program with or without changes."

(Emphasis mine)

Source: https://www.gnu.org/philosophy/selling.html

As you can see, anyone who obtains the code CAN redistribute it unchanged, bug for bug......

I rest my case.