Re: etags.el tags-search use global syntax table

[Richard Stallman <rms@gnu.org>]

    The reason is that the next-file function in etags.el loads non-visited
    files in a temporary buffer with insert-file-contents, rather than using
    find-file, so the mode remains Fundamental.  I am not sure why it is so.

There are two reasons for this.  One is that some major modes can be
rather intrusive in what they do.  The other is that visiting a file
is much slower.

Of course, it was all based on the idea that it wouldn't really matter
for searching, and if it actually finds a match, then it visits the
file properly.  This bug shows that the major mode does matter in some
cases for searching.

I am not sure whether it is better to fix this bug or not.
If it is a big slowdown, we are better off not fixing it.