Subject: bug#23092: 25.0.92; Minibuffer completion fails to resize completion window if reused during same command

From: Eli Zaretskii <[email-masked]>
Date: Tue, 22 Mar 2016 20:28:14 +0200

> From: [email-masked] (N. Jackson)
> Date: Tue, 22 Mar 2016 14:07:39 -0300
> 
>     src/emacs -Q
> 
>     C-x C-f            ; find-file
>     lib/v TAB          ; A tiny window pops up with "verify.h" and "vla.h."
>     <backspace> s TAB
> 
> At this point there is still a tiny completions window with about 50
> completions most of which are not visible in the window.

Press TAB repeatedly to scroll through those 50 completions.

(I'm not saying this cannot or shouldn't be improved, I'm saying this
is not "impossible to use".)