bug#61496: 30.0.50; Default value of icon-title-format

[Eli Zaretskii <eliz@gnu.org>]

[Forwarding message by Jonas to the bug tracker]

> From: Jonas Bernoulli <jonas@bernoul.li>
> Date: Thu, 16 Feb 2023 17:23:20 +0100
> 
> A day after this discussion began, I opened a duplicate of sorts
> (bug#61538).  Eli asked me to express my opinion here.
> 
> I was inclined to agree with Óscar after reading this discussion, but
> after experimenting a bit, I am not so sure anymore.
> 
> 1. I have not actually experienced a regression.  I was happy to use the
>    default values for icon- and frame-title-format for a long time (I
>    used the uniquify package to display a bit more information than just
>    the nondirectory part of the filename).  It is a coincidence that I
>    just now decided that I want to instead use the absolute filename as
>    the frame title but continue to display some abbreviation in the
>    mode-line.
> 
> 2. Apparently icon-frame-title was broken since 24.x.  Reading this
>    thread I assumed that means that variable was just ignored.  But I
>    just experimented with these variables in 28.2 and they both appear
>    to behave as documented.
> 
>    Before I can really form an opinion on whether the default should
>    be changed in 29.1 or 30.1, I need you to tell me how the behavior
>    changed from 28.2 to 29.0.60.
> 
> I think the default for icon-frame-title should be "the same as for
> frames that are not iconified" and that should be expressed using t as
> the value.  As far as I currently understand it, that would be a change
> in behavior.
>