New tasks might have empty workitems

It happened that I did GET /taskDetail or GET /taskWorkItems for tasks that newly appeared in the tasks response and are still running, and the list of workitem_ids or workitems was empty. Here is an example such task:

http://coin.ci.qt.io/coin/integration/qt/qt5/tasks/1681588241

Doing the same API calls later returns a full list. Apparently there is some timing issue in Coin.

The problem is that I need to know if the list of workitems is final or not. I can't keep polling every running task every 10s.

Possible solutions

Alternatives:

• do not show the task in GET /tasks unless the details like workitems and changes are fully loaded and finalized.
• add a state in GET /tasks so that I know a task is "Loading" instead of "Running". That way I can fetch details only for the running tasks.

Other ways? Can I handle it on the client-side?