bug#10873: 24.0.93; `report-emacs-bug' obscures bug-reporting buffer (!)

[Eli Zaretskii <eliz@gnu.org>]

> Date: Sun, 27 Dec 2015 17:05:02 +0100
> From: martin rudalics <rudalics@gmx.at>
> CC: larsi@gnus.org, 10873@debbugs.gnu.org
> 
> OT1H the window showing the *Completions* buffer is softly dedicated to
> that buffer.  This is necessary to make sure that an intermittent
> ‘display-buffer’ does not steal that window for showing another buffer.
> Windows showing *Completions* should disappear immediately when they are
> no more needed but till then they should be continuously visible.
> 
> OTOH ‘report-emacs-bug’ apparently assumes that it always has two
> windows at its disposal - one for the message and one for help.  This
> assumption misfires with the recipe at hand.  (Note that my machine in
> addition also displays a warning from ‘compose-mail’ which gets usually
> immediately buried when showing either the message or the help.)
> 
> IMO this report is the result of a cockpit error.  As long as a "modal"
> window like that showing *Completions* is open, users should not start
> an unrelated activity, including that of writing a bug report.
> 
> If, however, people think that ‘report-emacs-bug’ should always succeed
> showing both of its windows in every conceivable context, we can do that
> easily by calling ‘delete-other-windows’ before ‘display-buffer’.  This
> will clearly misfire for people showing more than two windows per frame.

Can we save the window configuration before deleting other windows,
and restore it once the report is sent?  If not, then I think just
deleting the other windows is "good enough" in this case.

Thanks.