Bug 475772

Summary: Message threading broken in Unified Inbox
Product: [Applications] kmail2 Reporter: Quinten Kock <quinten>
Component: message listAssignee: kdepim bugs <kdepim-bugs>
Status: REPORTED ---    
Severity: normal    
Priority: NOR    
Version First Reported In: 5.24.1   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: Mails threading correctly with the specific inbox selected
Mail thread being split in two in the unified inbox

Description Quinten Kock 2023-10-18 03:49:02 UTC
Created attachment 162396 [details]
Mails threading correctly with the specific inbox selected

SUMMARY
Threading seems broken in the Unified Inbox but only there, at least for this specific group of messages.

STEPS TO REPRODUCE
1. ??? 

OBSERVED RESULT
Threading being the same in specific and unified inboxes.

EXPECTED RESULT
Threading differs.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.10

ADDITIONAL INFORMATION
Glad to help debug further; I have a .mbox of the mails on the screenshot, is sharing these risky in any way (e.g. personal data)? Maybe they could help reproduce the issue.
Comment 1 Quinten Kock 2023-10-18 03:49:29 UTC
Created attachment 162397 [details]
Mail thread being split in two in the unified inbox