Prevent all subtasks get marked done, when task is done by mistake.

[Marcus-En]

Is your feature request related to a problem? Please describe.

When I want to open a task to see the subtasks, it repeatedly happened to me that hit the DONE checkbox instead and mark the tasks done - with its whole tree of sub-tasks (and subsubtask etc.). When I mark the task back un-done, all subtasks stay done.
As I try to keep my tasks in structure, there are many sub-tasks. So, such simple mistypo can cause a lot of work and/or confusion.

Describe the solution you'd like

What about a silly reminder window like: "Not all subtasks are done. Do you want to mark them all done? Yes / No"

Describe alternatives you've considered

Second choice:
Allow task to be done, while its sub-tasks are stay pending...
Option to mark whole tree done/undone

Additional context

No response

[raimund-schluessler]

@nextcloud/designers I think a modal asking whether one wants to complete a task with open subtasks makes sense here. Not completing the subtasks while completing the root task does not make sense imho.

[szaimen]

@nextcloud/designers I think a modal asking whether one wants to complete a task with open subtasks makes sense here. Not completing the subtasks while completing the root task does not make sense imho.

Yes, a modal sounds good 👍