Repeated Task does not change Deadline property to the current day/time plus the current repeated interval when Done

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### Search first

- [x] I searched and no similar issues were found

### What Happened?

see title

### Reproduce the Bug

1. Create a new Task with `\Todo` and name it "Do a test"
2. Click on the item to see the detail view
3. Show hidden properties
4. Set Deadline to next hour (e.g. 13:00) and Repeat to 1 Hour
5. Set Status to Done
6. The Deadline changed to previous Deadline + Repeat time (e.g. 14:00) instead of current time + Repeat time (e.g. 13:32 when current time is 12:32)

Same with Scheduled instead of Deadline.

### Expected Behavior

The documentation sais:

> When `Status` changes to `Done`, the `Deadline` (or `Scheduled`) property changes to the current day/time plus the current repeated interval. For example, if it's currently 12:20 and the interval is 1 hr, the new value is 13:20.

https://github.com/logseq/docs/blob/master/db-version.md#repeated-tasks-and-nodes

### Files

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### Browser, Desktop or Mobile Platform Information

NixOS 25.11.4137.72ac591e7370
Flatpak, version 2.0.0

### Additional Context

_No response_

### Are you willing to submit a PR? If you know how to fix the bug.

- [ ] I'm willing to submit a PR (Thank you!)

Start by reproducing the steps with a repeated Deadline and then with Scheduled. Compare the behavior with the repeated-tasks description in db-version.md, and trace the Status-to-Done handling. Done means both properties use the current time plus the configured repeat interval rather than the previous value.

Written by the indexing model from the issue text.