Subject: Re: bug#45072: 28.0.50; Emacs switches other buffer back uncontrollably, if other window's buffer is changed by user during minibuffer editing

From: Juri Linkov <[email-masked]>
Date: Fri, 11 Dec 2020 11:39:32 +0200

> I would rather prefer replacement than third window jerking other two
> up and rendering them not usable. But that is not subject of this bug report.

Currently *Completions* are displayed by 'display-buffer-at-bottom'.
You can customize this with:

(push `("\\`\\*Completions\\*\\'" display-buffer-use-some-window)
      display-buffer-alist)