bug#51883: 29.0.50; Command to get accidentally deleted frames back

[Juri Linkov <juri@linkov.net>]

>> > I tried to use this, but undelete-frame-mode in the File menu
>> > makes no sense: when you mistakenly deleted a frame, you want
>> > to undelete it immediately, so you open the File menu, and
>> > see the message "No way, you can't undelete the deleted frame,
>> > because you were careless and not enabled a special mode".
>> >
>> > So the most useful case for this feature is to get the
>> > accidentally deleted frame back, and it fails to do this.
>> >
>> > Instead, it allows undeleting 16 frames in a special mode.
>> > Is there really a human that can delete 16 frames, and then
>> > remember what was on the 16th frame back?
>> >
>> > Rereading this thread indicates that the only concern about
>> > enabling this by default was the memory footprint for remembering
>> > 16 frames.  OTOH, this feature is really useful for remembering
>> > 1 frame.  So this is what should be enabled by default:
>>
>> It seems this is the right thing to do, so now pushed to master.
>
> I'm sorry, you cannot do that.  We discussed this at some length and
> reached certain conclusions.  Then you come and in effect say those
> considerations and discussions make no sense, and you know better?
> Let's please respect our discussions and decisions more than that.
> And if you want others to respect your opinions, please respect
> theirs, even if you disagree.  The feature as installed allows you to
> customize it to have that mode turned on by default, so you could
> easily fix your problem by doing that.
>
> Specifically to your main argument: it is no different from deleting a
> file: unless the user took steps to configure the system to allow
> undeleting deleted files, deleted files are lost forever.  Moreover,
> in the case of an Emacs frame, nothing of terrible importance is
> actually lost: the buffers displayed in that frame are still there,
> and restoring the deleted frame by hand shouldn't take more than a few
> moments.
>
> So I reverted this changeset.  Please in the future don't make such
> changes unilaterally.

This is not true.  This is not a unilateral change.  I posted a patch,
then waited for comments 3 days, and when no one commented this means
that everyone agreed that it's a more reasonable change, then pushed to
master.