CalDAV: RELATED-TO doesn't get set when dragging a task into another to make it a subtask

[smithfred]

With a CalDAV backend, when creating a subtask in Errands, the RELATED-TO field in the CalDAV VTODO is set to the ID of the parent task to indicate the relationship (as Apple Calendar does).

However, if a task is created and then dragged into another task to make it a subtask, the field does not get set correctly.

[mrvladus]

I can't replicate that. What CalDAV server you're using?

[mrvladus]

Is it fixed in the last update?

[smithfred]

Radicale with Errands 46.2.1, but there were more serious problems with the sync logic that led me to stop using Errands for now to avoid data loss.

[mrvladus]

It's not working well with radicale servers.