bug#32651: flyspell marks doublons when not the same case

[Eli Zaretskii]

> From: Reuben Thomas <rrt@sc3d.org>
> Date: Thu, 6 Sep 2018 20:37:04 +0100
> Cc: 32651@debbugs.gnu.org
> 
>  There are valid use cases where the current behavior is what the users
>  want (e.g., "And and" at the beginning of a sentence).  So we could
>  introduce an option to do what you want, but I don't think we can
>  change the default behavior unconditionally.
> 
> I am suggesting the above example is not a valid use case, because it's 
> unlikely that someone would type
> that by mistake; rather, it's typing the same identical word twice that is 
> the common error.

I don't understand how you conclude that these are not valid use
cases.  E.g., I could have a mode turned on that automatically
capitalizes words at the beginning of each sentence, in which case
typing "and "and" will produce "And and".  And that is just an example
based on 5 sec of thought.