We tought we had a bug in our application, but “it’s not a bug, it’s a feature”.
So I write it here in case other people look for the same problem.
We tought there’s was an error in “stories” of task, when we add a subtask, because there’s no story about it.
The “modified_at” field of the parent task changes but there’s no story with that same date added.
The only place where the story is, is in the subtask, there a story about that subtask being added to or removed from a parent.
“added_to_task” or “removed_from_task”
But, in the parent, there’s nothing about it.
I think it could be a good idea to have the story at both places, in parent and child.