Subject: Re: bug#49043: 27.1: ibuffer-toggle-filter-group [BUGFIX]

From: Eli Zaretskii <[email-masked]>
Date: Wed, 16 Jun 2021 15:04:45 +0300

> Date: Wed, 16 Jun 2021 04:26:01 -0400
> From: Boruch Baum <[email-masked]>
> Cc: [email-masked]
> 
> Another approach to consider would be to put bounds-checking in function
> delete-region against (point-min) and (point-max).

delete-region already does include such checking, that's why you get
the backtrace: it signals an error.