Re: Stop frames stealing eachothers' minibuffers!

[Gregory Heytings via "Emacs development discussions." <emacs-devel@gnu.org>]

Hi Eli,

>
> You should try this with the emacs-27 branch, because Gregory's patch 
> installed there (and will be soon merged to master) changes the behavior 
> quite a bit.
>

It only changes the behavior for the echo area, not for minibuffers.  For 
minibuffers the behavior has not changed since Emacs 24: when a recursive 
minibuffer is entered in a frame, all other recursive minibuffers (if any) 
are moved from the frame in which they were to that frame.

>> The current master seems to me to be inconsistent, in that whether the 
>> minibuffer moves from F1 to F2 depends on whether the Isearch used a 
>> (recursive) minibuffer.
>
> AFAICT, this no longer happens.
>

It does.  As I said a few hours ago, there are three possible behaviors 
when each frame has its miniwindow:

A. when a (recursive) minibuffer is entered in a frame, all other 
minibuffers (if any) are moved from the frame in which they were to that 
frame

B. if one or more (recursive) minibuffers are active when switching to 
another frame (for example with C-x 5 o) these minibuffers are moved to 
that other frame

C. each (recursive) minibuffer is tied to the frame in which it was 
activated, that is, minibuffers are never moved from one frame to another

Behavior A is the current one.  Behavior B is what Stefan seems to favor. 
Behavior C is what Alan seems to favor.