Subject: bug#39558: 26.3; icomplete and display *Completions* in child frame

From: Eli Zaretskii <[email-masked]>
Date: Tue, 11 Feb 2020 17:35:37 +0200

> From: Andrii Kolomoiets <[email-masked]>
> Date: Tue, 11 Feb 2020 08:55:48 +0200
> 
> 1. emacs -Q
> 2. evaluate
> (customize-set-variable
>  'display-buffer-alist
>  '(("\\*Completions\\*" display-buffer-in-child-frame)))
> 3. M-x icomplete-mode
> 4. M-x f<TAB>
> 
> Error in post-command-hook (icomplete-post-command-hook): (wrong-type-argument number-or-marker-p nil)

I cannot reproduce this, so maybe this is Darwin-specific.

Thanks.