Earlier quoted context omitted.
The license does not bind the original copyright owner, who can do anything with the code - fee example relicense and distribute under another license. The license only binds the licensee that received the code under the respective license. Things get more complicated if there are external contributors that may have contributed under specific legal arrangements, but in the simple case there’s no legal way to force th…
> The license does not bind the original copyright owner, who can do anything with the code For any small to medium sized projects with zero external contributors, it's highly unlikely that anyone would pursue legal action so the person who owns the project does de facto have this right whether or not it's legal according to the license. > Things get more complicated if there are external contributors I don't think t…
> whether or not it's legal according to the license
The original author is not bound by any licence. Only the licensees are. The licence they chose to use by definition cannot bind them; they are issuing the licence.
(They are obviously bound by the licences of anything that they use, but that’s not what the person you’re replying to is talking about)