GNU bug report logs - #79159
[PATCH] Do not display in the tab line tabs that are excluded.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Juri Linkov <juri <at> linkov.net>
Cc: 79159 <at> debbugs.gnu.org, eg642616 <at> gmail.com
Subject: bug#79159: [PATCH] Do not display in the tab line tabs that are excluded.
Date: Tue, 05 Aug 2025 22:21:47 +0300

> From: Juri Linkov <juri <at> linkov.net>
> Cc: eg642616 <at> gmail.com,  79159 <at> debbugs.gnu.org
> Date: Tue, 05 Aug 2025 20:32:06 +0300
> 
> >> 1. M-x global-tab-line-mode RET
> >> 2. C-x b foo RET
> >> 3. C-x b SPC *bar* RET
> >> 4. C-x <left>
> >>    Now the buffer name " *bar*" is visible on the tab-line.
> >> 5. C-x <left>
> >>    But now " *bar*" suddenly goes away.
> >> 
> >> This is because handling of excluded buffers is hard-coded
> >> in many window.el functions.
> >> 
> >> So not showing excluded buffers by default will avoid this snag.
> >
> > If there are bugs with handling excluded buffers, I hope we can fix
> > them, instead of leaving them hidden behind a user option.  People who
> > will use that option will see those bugs exactly as all of the users
> > see them today, and they _will_ complain.
> >
> > OTOH, since no one has yet complained about those bugs, perhaps
> > leaving this behavior be the default is not such a bad idea?
> 
> Not bugs, just unexpected inconsistencies.  window.el doesn't
> permit excluded buffers to exist in the window-prev-buffers list
> that is used for tab-line.  No one complained about this problem
> because it's very difficult to notice it: one moment there is
> an excluded buffer on the tab-line, and the next moment it disappears.
> 
> Not showing such buffers by default will fix this inconsistency.

No, it will just sweep the problem under the carpet.  Since when are
we handling bugs in this manner?  If a feature needs work to be
finished, let's please invest the effort to do that work.  Let's
please not have semi-broken features.

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