bug#38727: 27.0.50; The frame refreshes when pressing 'C-h k'

[HaiJun Zhang]

在 2019年12月24日 +0800 PM11:32，Eli Zaretskii <eliz@gnu.org>，写道：

I cannot reproduce this with the current master, so I guess this is
Darwin-specific. 

Yes. I just tried on linux. It is ok on linux.

Eval the following code can reproduce the problem:

(let ((cursor-in-echo-area t))

  (read-key-sequence “hello: “))