The problem I observed was this:

0. install Fedora while being connected to internet
1. in the initial language selection preselected by some heuristic
   based likely on geoip, observe you have everything in language
   A different from English; A is also preselected and subsequently
   confirmed by the user
2. realize you actually want a different language (English), go "back"
   (almost identically looking Language Support dialog) choose English
3. observe:
   a. previously selected language A cannot be deselected
   b. when confirmed with English added, the dialog strings are still
      in language A

My suggestion is that the functionality of the very initial language
support selection and subsequent dialog to adjust the preferences
for that should be functionally equivalent, not that the former is
binding and the latter is just additive.


FWIW, it reminds me a really bad design of installer of "the other
operating system" where a mistake in initial language selection seemed
even more fatal, while here, the remedy is simply a reboot.
Which is still anoying enough (for me) and hence this bug report.