Sorry, if this is already issue in Craig's list. If the user wants to have a hierarchy of objects transient, it's pain to go all over the objects using callbacks or not. An alternative really common to use is detachCopy, but this is expensive because of the objects copies. RetainValues is an alternative less expensive, but it will retain the values for all objects in the transaction which I don't want.
What about a method makeTransient(rootObject, useFetchPlan)?
