Is it possible to re-open a task without re-opening all of Its subtasks?

There are times when a previously closed task needs to be reopened and have a new subtask added to it. But when you repopen the task all of its subtasks are also automatically reopened, even if the subtasks shouldn't be reopened.

This is confusing and makes people think that all of those previously closed subtasks all of sudden need work done to them. The system also sends an email when it does this. 

There needs to be an option to re-open a clsoed task without automatically re-opening all of its subtasks.

Thanks