Subject: bug#58558: 29.0.50; re-search-forward is slow in some buffers

From: Stefan Monnier <[email-masked]>
Date: Thu, 13 Apr 2023 00:43:11 -0400

> parse_sexp_lookup_properties looks suspicious, so I checked the value of
> parse-sexp-lookup-properties in Org files on master vs. Emacs 28.
>
> On master, the value is t, even though Org mode does not set this
> variable. On Emacs 28, the value is nil.

Any chance you can now give a reproducible recipe of you
big&progressive slowdown?

        Stefan