Bug 497843

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SUMMARY
Korganizer/Plasma shows reminders for tasks even if they are marked as done on the server.

STEPS TO REPRODUCE
1. Add a CalDAV calander to korganizer, so that you get reminders for it (might need to display it in the Plasma calendar not sure).
2. Add a task in the future
3. Shut down the computer
4. Wait until the task is due
5. Mark it as done on another device
6. Start the computer again

OBSERVED RESULT
Plasma shows a reminder for the task, even though it's done.

EXPECTED RESULT
When it starts, it tries to check on the server whether the task is done before showing a reminder for it. And relatedly, if the task is marked as done on the server after korganizer shows a reminder for it, the reminder is hidden.

SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20241211
KDE Plasma Version: 6.2.4
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.1
Kernel Version: 6.11.8-1-default (64-bit)
Graphics Platform: Wayland
Processors: 8 × AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx
Memory: 29.3 Gibyte of RAM
Graphics Processor: AMD Radeon Vega 10 Graphics
Manufacturer: Acer
Product Name: Aspire A315-41
System Version: V1.18