bug#22038: 25.1.50; Character folding issues with isearch

[Andreas Röhler]

Am 29.11.2015 um 01:06 schrieb Artur Malabarba:
> All these items are now implemented. Thanks for filing the issue, 
> Stephen.
>
> We can discuss whether we want to add any ad hoc rules. But I agree 
> with Eli that I want to wait and see. This is a brand new feature, and 
> I'd prefer that it's first iteration be just a solid foundation.

It would make sense to restrict character folding to ASCII.  At least 
announce that in documentation. In other languages behaviour will remain 
hasardous.