This commit fixes an issue where subtasks weren't properly reporting back to parent tasks when cancelled and resumed. Previously, when a subtask was cancelled and a new task was started with the same message, the parent task would incorrectly resume, causing unexpected behavior.
The fix:
1. Stores parent-child relationship information before cancelling a task
2. Restores this relationship after task reinitialization
3. Ensures parent tasks only resume when explicitly instructed to do so
This approach maintains the correct task hierarchy throughout the cancellation and resumption process, preventing parent tasks from automatically resuming when unrelated tasks with similar messages are started.
