Paul Pogonyshev <pogonyshev@gmail.com> writes:
> * In a freshly started Emacs, open an archive, e.g. a .tar.gz file in a buffer.
> * Switch to another buffer, type a couple of letters and then start pressing 'M-/'
> (dabbrev-expand).
> * It is very likely you will hit a "very useful" dabbrev in binary form taken from
> the archive. E.g. I opened a large tarball, then switched to *scratch*, typed "tz",
> and the very first dabbrev I got was "tz\327r".
(I'm going through old bug reports that unfortunately got little response at
the time.)
I tried reproducing this in Emacs 28, and I don't get any of these
binary expansions. Are you still seeing this in more recent Emacs
versions?
--
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bloggy blog: http://lars.ingebrigtsen.no