Reoccuring tasks marked completed do not save completed state when exporting/importing

[WesleyFister]

Checklist

• I can reproduce the bug with the latest version given here.
• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• This issue contains only one bug.
• I have read and understood the contribution guidelines.

Affected app version

1.8.1

Affected Android/Custom ROM version

GrapheneOS 2025112100

Affected device model

Pixel 8 Pro

How did you install the app?

F-Droid / IzzyOnDroid

Which calendar service or provider do you use, if any?

None.

Which sync adapter app do you use for calendar synchronization, if any?

None.

Steps to reproduce the bug

1. Create a new task
2. Have it reoccur daily and forever
3. Save the task
4. Mark some of the tasks as "Completed"
5. In the settings under the "Migrating" section select "Export events to an .ics file"
6. Make sure "Export events", "Export tasks" and "Export past entries too" are checked.
7. Clear the app's storage
8. import the calendar into the app

Expected behavior

The completed tasks should import and still be marked off as "completed".

Actual behavior

The only task that gets imported properly, saving its completed state is the first task out of all the tasks that got created via reoccurring.

Screenshots/Screen recordings

Prior to export.

After clearing the app's storage and importing the calendar.

Additional information

No response