[kmail2] [Bug 279115] Standard Mailing list doesn't thread properly

[Daniel Vrátil]

https://bugs.kde.org/show_bug.cgi?id=279115

Daniel Vrátil  changed:

   What|Removed |Added

   Version Fixed In||5.10.0
  Latest Commit||https://commits.kde.org/mes
   ||sagelib/dc4a7feb10f035be1a7
   ||12e67d75daf7ebe859f33
 Status|REOPENED|RESOLVED
 Resolution|--- |FIXED

--- Comment #12 from Daniel Vrátil  ---
Git commit dc4a7feb10f035be1a712e67d75daf7ebe859f33 by Daniel Vrátil, on behalf
of Jan Janssen.
Committed on 16/08/2018 at 22:02.
Pushed by dvratil into branch 'master'.

Thread messages with same reference ID together

Summary:
Thread messages with same reference ID together

Messages from github or bugzilla usually use In-Reply-To and References headers
with an ID that either doesn't actually exist or just isn't around in the
folder. In case of bugzilla, no threading happens in that case because subject
lines don't start with "Re:". github does do that, but oftentimes the subject
based threading is imprecise (by design).

Therefore create a sorted-by-date cache of messages similar to the subject
based cache and put any message we cannot perfectly thread to the very first
message with the same message ID.
What results is a flat but threaded messagelist similar to what thunderbird
does.

FIXED-IN: 5.10.0

Reviewers: dvratil

Reviewed By: dvratil

Subscribers: dvratil, bruns, kde-pim

Tags: #kde_pim

Differential Revision: https://phabricator.kde.org/D14883

M  +89   -4messagelist/src/core/model.cpp
M  +9-0messagelist/src/core/model_p.h

https://commits.kde.org/messagelib/dc4a7feb10f035be1a712e67d75daf7ebe859f33

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[kmail2] [Bug 279115] Standard Mailing list doesn't thread properly

[Karl Ove Hufthammer]

https://bugs.kde.org/show_bug.cgi?id=279115

Karl Ove Hufthammer  changed:

   What|Removed |Added

 CC||k...@huftis.org

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[kmail2] [Bug 279115] Standard Mailing list doesn't thread properly

[Jan]

https://bugs.kde.org/show_bug.cgi?id=279115

--- Comment #11 from Jan  ---
I figured out why this is happening: KMail only considers prefixed E-Mails for
subject based threading. If it doesn't start with a "Re:" for example, it's not
a thread. Bugzilla doesn't do that. So in the absence of that, it only uses
In-Reply-To/Reference headers. And that doesn't work if the thread starter is
missing, which imho is the wrong way to handle that.

And even if it is prefixed, it will not consider messages with a time
difference of 120 seconds. So if you managed to have a github conversation that
is faster than that, it's not a thread either. This one in particular I really
don't understand.

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[kmail2] [Bug 279115] Standard Mailing list doesn't thread properly

[Jan]

https://bugs.kde.org/show_bug.cgi?id=279115

Jan  changed:

   What|Removed |Added

 CC||medhe...@web.de

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[kmail2] [Bug 279115] Standard Mailing list doesn't thread properly

[Jonathan Marten]

https://bugs.kde.org/show_bug.cgi?id=279115

Jonathan Marten  changed:

   What|Removed |Added

 Status|RESOLVED|REOPENED
 Resolution|UNMAINTAINED|---

--- Comment #10 from Jonathan Marten  ---
Confirmed with current KMail Git master (5a385e200).
Subject threading is not working with the same test case.

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[kmail2] [Bug 279115] Standard Mailing list doesn't thread properly

[Denis Kurz]

https://bugs.kde.org/show_bug.cgi?id=279115

Denis Kurz  changed:

   What|Removed |Added

 Resolution|WAITINGFORINFO  |UNMAINTAINED
 Status|NEEDSINFO   |RESOLVED

--- Comment #9 from Denis Kurz  ---
Just as announced in my last comment, I close this bug. If you encounter it
again in a recent version (at least 5.0 aka 15.08), please open a new one
unless it already exists. Thank you for all your input.

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[kmail2] [Bug 279115] Standard Mailing list doesn't thread properly

[Denis Kurz via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=279115

Denis Kurz  changed:

   What|Removed |Added

 Status|CONFIRMED   |NEEDSINFO
 Resolution|--- |WAITINGFORINFO

--- Comment #8 from Denis Kurz  ---
This bug has only been reported for versions before 4.14, which have been
unsupported for at least two years now. Can anyone tell if this bug still
present?

If noone confirms this bug for a Framework-based version of kmail2 (version 5.0
or later, as part of KDE Applications 15.12 or later), it gets closed in about
three months.

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