> Ok, now I found the culprit by grepping all sources of the addon
> packages I use. It is CEDET (1.0_pre4). In senator.el there's some
> setting and killing of the buffer-local value of
> isearch-search-fun-function. I deinstalled cedet, and now it works.
> Eric, can you have a look at this?
I committed a fix to senator.el in the CEDET CVS repository.
It would be great if you could test it and tell if it solves
the issue. Thanks for tracking this bug.