https://bugs.kde.org/show_bug.cgi?id=526877
Bug ID: 526877
Summary: Re-parenting child message in thread (on delete) makes
thread ill-formed sometimes
Classification: Applications
Product: kmail2
Version First 6.8.1
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: message list
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
DESCRIPTION
Consider we have a new thread of messages like: Message -> Re: Message -> Re:
Message. Each new message answers on previous. In this case deletion from the
middle will break the thread and we will have 2 outstanding messages.
There are other issues with saving thread structure. Consider we have a
following thread:
Message
|_______> Re: Message
| |___________> Re: Message
|
|_______> Re: Message
|___________> Re: Message
Deletion of the first message in the above thread will make wrong thread
structure. We will have 1 top message with some tree from it, when we should
receive 2 threads.
All these issues are from one place in the code. During Pass1Cleanup operation
we start standard algorithms for parent determining (Pass2, Pass3, ...) and
they fail. We should just set for children in the thread a new perfectly known
parent (hardly set tread status for children that their parent perfectly
known), and set parent, don't launch standard passes in case of cleanup...
STEPS TO REPRODUCE (simplest case)
1. Write a message to yourself
2. Receive that message
3. Answer on that message to yourself
4. Receive second message
5. Answer on the second message
6. Receive third message
7. Delete second message (from the middle of the thread)
OBSERVED RESULT
The thread will be disconnected. We will receive 2 top-level messages.
EXPECTED RESULT
The thread should save their structure and we should get:
Message
|_______> Re: Message (<- this is 3rd message)
Operating System: openSUSE Tumbleweed 20261008
KDE Plasma Version: 6.7.5
KDE Frameworks Version: 6.30.0
Qt Version: 6.11.2
Kernel Version: 7.2.9-1-default (64-bit)
Graphics Platform: Wayland
Processors: 4 × Intel® Core™ i5-7200U CPU @ 2.50GHz
Memory: 8 GiB of RAM (7.6 GiB usable)
Graphics Processor: Intel® HD Graphics 620
Manufacturer: HP
Product Name: HP ProBook 640 G3
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