Subject: Re: 30.0.50; minibuffer-choose-completion + elisp-c-a-p delete next sexp when completing after open paren

From: Juri Linkov <[email-masked]>
Date: Tue, 16 Jan 2024 19:39:39 +0200

> This is because elisp-completion-at-point returns a completion region
> covering the entire sexp after the start of the region.  That sexp is
> "(progn (some) (big) (expression))" in the first case and "a" in the
> second case.

This is a known bug without a known fix:
https://debbugs.gnu.org/64903#18