GNU bug report logs - #68510
Bug in gnus' C-u S v

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From: Eric Abrahamsen <eric <at> ericabrahamsen.net>
To: Tomas Volf <~@wolfsden.cz>
Cc: 68510 <at> debbugs.gnu.org
Subject: bug#68510: Bug in gnus' C-u S v
Date: Fri, 19 Jan 2024 08:10:25 -0800

On 01/19/24 12:55 PM, Michael Albinus wrote:
> Tomas Volf <~@wolfsden.cz> writes:
>
>> Hello,
>
> Hi Tomas,
>
>> I think I found a bug in debbugs, however I am not sure if the bug is in
>> documentation or in the code.  Steps to reproduce (in emacs -Q):
>>
>> In *scratch* buffer:
>>    (require 'debbugs-gnu)
>>    (debbugs-gnu-bugs 66531)
>>
>> In the new buffer open the message and navigate cursor to last message from Mike
>> Gran (47: ).  Now, when I want to reply, I press S v and it opens a buffer with
>> (addresses are censored):
>>
>>     To: Mike Gran <xxx>
>>     Cc: Tomas Volf <xxx>,  "xxx <at> debbugs-gnu-org" <xxx>
>>     Subject: Re: bug#66531: [PATCH] ftw: Fix getuid-or-false, getgid-or-false macros.
>>     From: me <at> hostname.mail-host-address-is-not-set
>>     --text follows this line--
>>
>> So far that is expected.  However when I want to quote the original message, I can, based on the reading of the manual, use C-u S v:
>>
>>> If prefix argument YANK is non-nil, the original article(s) will be yanked
>>> automatically.
>>
>> However while that does work, additional undocumented (and unwanted) changes are
>> done as well,producing a following message:
>>
>>     To: Mike Gran <xxx>
>>     Cc: Tomas Volf <xxx>, Tomas Volf <xxx>, control <at> debbugs-gnu-org,
>> xxx <at> debbugs-gnu-org
>>     Subject: Re: bug#66531: [PATCH] ftw: Fix getuid-or-false,
>> getgid-or-false macros., bug#66531: [PATCH] ftw: Fix getuid-or-false,
>> getgid-or-false macros., bug#66531: [PATCH] ftw: Fix getuid-or-false,
>> getgid-or-false macros., bug#66531: [PATCH] ftw: Fix getuid-or-false,
>> getgid-or-false macros., control message for bug #66531, control
>> message for bug #66531
>>     From: me <at> hostname.mail-host-address-is-not-set
>>     --text follows this line--
>>     Mike Gran <xxx> writes:
>>
>>     [..]
>>
>> Notice that the subject is pretty weird, and for some reason there is a control
>> server in the CC list.  I do not know if this is expected (well, at least I did
>> not expect it), but it at the very least does not seem to be documented.  Based
>> on my reading of the C-h k S v I would have expected just the "Mike Gran
>> <xxx> writes:" change.
>
> Zhanks for the report, I could reproduce it. However, it doesn't seem to
> be a Debbugs bug, but rather a Gnus bug. I've reproduced it by using
> Gnus w/o Debbugs.
>
> For this, I've started a new Emacs instance w/o debbugs. I've opened
> Gnus, and browsed the gmane server {nntp:news.gmane.io} for the group
> gmane.lisp.guile.bugs. Message 10682 is the one you've mentioned above.
>
> Typing in the Summary buffer 'C-u S v' shows the error.
>
> I'm therefore changing the subject, adding Eric Abrahamsen into Cc.

I can't reproduce this exact result, but I can get buggy behavior -- in
my case it pulls in the subject of the *next* message in my Summary
buffer, in my case for bug #68506. Actually it seems to do a little
something different every time, also depending on whether I have things
edebugged or not. Fun!

I suspect the prefix argument is being interpreted wrong somehow. I
wouldn't be surprised if Tomas's subject line looks like that because
'(4) is resulting in four copies of the subject.

Tomas, would you first confirm that running "S V"
(gnus-summary-very-wide-reply-with-original) behaves correctly?
Essentially that's supposed to do exactly what "C-u S v" does, and it
works correctly for me, which is part of why I think it's a prefix
argument problem. I don't even know why we have all these variants.

Thanks for alerting me, Michael. I've put you on BCC assuming you'd
prefer to drop off the thread, but if you'd like to continue pitching
in, you're more than welcome! :)

Eric

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