bug#69056: 30.0.50; history-add-new-input and recursive minibuffers

[Eli Zaretskii]

> From: Eshel Yaron <me@eshelyaron.com>
> Cc: 69056@debbugs.gnu.org
> Date: Sun, 11 Feb 2024 18:42:49 +0100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > I'm not sure we should be interested in fixing this.  Recursive
> > minibuffers are not supposed to start a completely new command loop
> > unaffected by whatever was before it, so we shouldn't try.
> 
> I see that, but the problem, IMO, is that there's nothing telling you
> that you're in this state of not recording minibuffer history.  You
> likely won't know that you're using a command that let-binds
> history-add-new-input when you enter a recursive minibuffer, and losing
> all minibuffer history from commands you invoked in the recursive edit
> may come as an unpleasant surprise.

We should probably document this caveat.  enable-recursive-minibuffers
is an advanced feature, not recommended to newbies.