bug#55412: 28.1; In Emacs 28.1, using ':eval' in 'frame-title-format' doesn't work properly

[Alan Mackenzie <acm@muc.de>]

Hello, Martin.

On Wed, May 18, 2022 at 17:01:43 +0200, martin rudalics wrote:
>  >> When I type M-:, save the expression to evaluate from some other frame,
>  >> and the subsequent yank inserts that expression into a normal buffer
>  >> instead of the minibuffer, the resulting behavior does not constitute a
>  >> less important inconsistency but an annoying regression.  This is one of
>  >> the things that used to work "ever since".
>  >
>  > Can you tell more about the inconsistency you get in this scenario?
>  > I'm afraid I don't follow the description and therefore cannot try
>  > reproducing it myself.

> Suppose I want to calculate the sum of two numbers: number-1 is shown in
> a buffer on frame-1, number-2 is show in a buffer on frame-2.  I start
> typing M-: (+ on frame-1 then I do C-x o, mark number-1, type M-w, C-x o
> and C-y to yank number-1 into the minibuffer.  Then I add a space to the
> minibuffer, type C-x 5 o to go to frame-2, mark number-2, type M-w and
> C-x 5 o to get back to frame-1.

> Ever since, that last C-x 5 o got me to the minibuffer window.  With the
> proposed change, that C-x 5 o will get me to the window of number-1 and
> I have to manually select the minibuffer window to yank number-2 there.

I think I can see where the problem is.  I've even found the patch where
this problem was introduced.

I'll see if I can get a patch to you this evening to fix it.

> martin

-- 
Alan Mackenzie (Nuremberg, Germany).