Subject: bug#36745: 27.0.50; completing-read with require-match nil does not accept spaces

From: "Basil L. Contovounesios" <[email-masked]>
Date: Sun, 21 Jul 2019 10:54:20 +0100

Michael Heerdegen <[email-masked]> writes:

> So I don't see any bug in the strict sense.  OTOH I think it would be
> good to speak out that SPC is special, and mention the C-q SPC
> workaround, at least in the manual (if we don't do this already - do
> we?).

We do, see (info "(emacs) Minibuffer Edit"):

     Inside a minibuffer, the keys <TAB>, <SPC>, and ‘?’ are often bound
  to “completion commands”, which allow you to easily fill in the desired
  text without typing all of it.  *Note Completion.  As with <RET>, you
  can use ‘C-q’ to insert a <TAB>, <SPC>, or ‘?’ character.

and (info "(emacs) Completion Commands").

-- 
Basil