Alan Mackenzie <acm@muc.de> schrieb am So., 10. Sep. 2017 um 13:42 Uhr:

> - Before this change is pushed to master, or shortly after, I'd like to
> know that it actually fixed the problem Philipp experienced with
> python-mode, so we can revert 4fbd330. If it was caused by e.g.
> syntax-table changing, we've not improved much.

Philipp, any chance of you trying out python mode with this patch but
without 4fbd330?

Unfortunately the problem wasn't easily reproducible back then. The problem would occur from time to time, but I never found a way to trigger it reproducibly. Therefore the unit test I've added in the commit artificially generates the symptom. The root cause is still unknown; while syntax-ppss and narrowing might be a potential root cause (the fontification code uses both), it might also be something else.