I didn't mean "re-licenced". I meant that it can become closed-source. Bad wording on my end. Now I guess they can modify permissively-licenced files without l

I didn't mean "re-licenced". I meant that it can become closed-source. Bad wording on my end. Now I guess they can modify permissively-licenced files without licencing their modifications permissively, in which case the file is a mix between both, and good luck making the difference?