(match-end 0) returns 1 instead of the actual position

[Yuan Fu]

Hi,

This doesn’t happen with vanilla Emacs, but I couldn’t tell which part of my 
config is causing it. Basically if I run

(looking-at "xxx")
(match-end 0)

It returns 1 instead of the end of xxx after point.

Is there any user option that would affect this that I’m not aware of?

I tried bisecting but the issue doesn’t always reproduce. (It reproduce 
reliably when I enable all configuration, but not when I comment out parts of 
the config…)

Thanks,
Yuan