bug#35006: 27.0.50; Minibuffer sometimes unexpectedly does not grow

[Eli Zaretskii]

> From: Markus Triska <triska@metalevel.at>
> Date: Tue, 26 Mar 2019 18:31:03 +0100
> 
> Please start Emacs with "emacs -Q", and then evaluate in the
> *scratch* buffer the following form:
> 
>     (with-selected-window (minibuffer-window)
>       (erase-buffer)
>       (insert (propertize "hello" 'face '(:height 2.0)))
>       (read-key)
>       (erase-buffer))
> 
> This shows "hello" in the minibuffer, and the minibuffer grows as
> expected.

You didn't say how to evaluate that; there's more than one way.  If I
evaluate with "M-x eval-region RET", the mini-window doesn't grow; if
I evaluate with "C-x C-e" or C-j after the closing parenthesis, it
does grow.

So it sounds like one doesn't need such a complex recipe, the
different behavior is visible already on the first evaluation.