bug#62983: workaround PCRE2 bug affecting at least \D and \W

[Jim Meyering]

On Thu, Apr 20, 2023 at 7:33 PM Jim Meyering <jim@meyering.net> wrote:
>
> On Thu, Apr 20, 2023 at 7:05 PM Carlo Marcelo Arenas Belón
> <carenas@gmail.com> wrote:
> > All versions of PCRE2 that include PCRE2_MATCH_INVALID_UTF had a bug on
> > its JIT implementation that results in failure to match for the negative
> > perl classes, and seems to be easier to replicate when the matching
> > character is a multibyte one.
> >
> > Disable that flag and use the original fallback instead.
> >
> > Alternatively JIT could be disabled instead, but the option selected has
> > less of an impact on performance.
>
> Thanks for the patch! Is there any PCRE-upstream discussion about this?
> If so, I'd like to reference that from your commit log.

Oh! I see it in the test file:
  https://github.com/PCRE2Project/pcre2/issues/224