Juan Manuel Macías <maciaschain@posteo.net> writes:

>   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
>   #+OPTIONS: ':t
>   #+language:es
>
>   "my friends' party and the students' papers"
>   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
>
> the above produces in LaTeX:
>
>   \guillemotleft{}my friends'' party and the students'' papers\guillemotright{}
> ...
> Perhaps a possible solution would be to allow the use of a specific,
> customizable character, other than an apostrophe, for second-level
> quotes. Or at least add some brief warning in the manual: in certain
> contexts it is safer to use a explicit Unicode character for the
> apostrophe.

I think that we can address examples like this simply by not replacing
unbalanced quotes. There is already some effort in the code towards such
treatment, but it is not complete.

Can you try the attached patch?