> The first question you'll be asked in response to a bug report will be
> what does the same spell-checking program does when invoked outside of
> Emacs with the same text.

Right! Thanks. I did a test. I created a file with the word regularize
which should be regularise in the british spelling.


I run ispell -d british test.txt

And ispell found the error but did not propose a change. So this is the
fault of the wordlist.