bug#39484: 26.3; try-completion bug

[Wanrong Lin]

I am curious what is the rationale behind this behavior?

I remember this behavior gives me problem in "ido" trying to expand the 
user input to the max common matched text among all candidates, because 
as you can see, the "expansion" using this method may end up returning 
something that is not common at all for all the candidates.

On 10/27/2020 3:17 PM, Lars Ingebrigtsen wrote:
> Andreas Schwab <schwab@linux-m68k.org> writes:
>
> >    /* If we are ignoring case, and there is no exact match,
> >       and no additional text was supplied,
> >       don't change the case of what the user typed.  */
> Should this be mentioned in the doc string?