Re: New multi-command facility displays in the wrong echo area.

[Gregory Heytings]

> Does that work if you set tty-menu-open-use-tmm non-nil, then press f10 
> while the I-search: prompt is active?  This is one case where Isearch 
> reads from the minibuffer.

This gives "Command attempted to use minibuffer while in minibuffer", with 
earlier and current Emacs versions, with or without the bugfix.

> Another, perhaps more important, use case is when you type "M-s e" 
> during Isearch: that enters the minibuffer to let you edit the search 
> string.

This gives "Command attempted to use minibuffer while in minibuffer", with 
earlier and current Emacs versions, with or without the bugfix.

> Yet another similar use case is when you type "C-x 8 RET" during 
> Isearch: that reads the character's name/codepoint from the minibuffer.

This one works (the active minibuffer is moved to the current frame), with 
earlier and current Emacs versions, with or without the bugfix.

In short: these three use cases are orthogonal to the problem at hand, 
they are not improved or worsened by the bugfix.