bug#39484: 26.3; try-completion bug

[Lars Ingebrigtsen]

Andreas Schwab <schwab@linux-m68k.org> writes:

>> It does, but it's weird.  I mean, this pair of return values don't make
>> sense on any level:
>>
>> (let ((completion-ignore-case t))
>>   (try-completion "xyz" '("XyzaD" "XyZabc")))
>> => "Xyza"
>>
>> (let ((completion-ignore-case t))
>>   (try-completion "xyz" '("XyZbD" "XyZabc")))
>> => "xyz"  
>
> It makes a whole lot sense.  If the candidate is not modified, it
> should not receive any case changes either.

But the case change in the modified case is essentially arbitrary, while
the unmodified case has a unique, non-arbitrary match.

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