bug#29193: 26.0.90; Using (thing-at-point 'sexp) in flymake-diag-region might be suboptimal

[Dmitry Gutov]

On 18.12.2020 01:25, Glenn Morris wrote:
> fda9a2 causes a test failure.
>
> Ref eg:https://hydra.nixos.org/build/132986117

Thanks! It was a curious bug: one would expect that some highlighting's 
boundaries might change. What changed, however, is one's _type_.

I've pushed a fix, and I'll let the Flymake's maintainer sort out at his 
leisure whether flymake-diag-region can be relied on not to change match 
data, as several of its clients seem to assume.

> (Are people trying to run foo-tests.el before pushing changes to foo.el?)

Some of us are spoiled enough to expect an email from the CI when some 
breakage occurs.

(Sorry.)