Why do you want to preserve that artifact?
If you don't have a record of questions asked/answered and rationale for decisions taken, I've noticed it's easy for subsequent feature plans to clash. Maintaining a line of consistency across each feature plan is a good thing.
If you don't have a record of questions asked/answered and rationale for decisions taken, I've noticed it's easy for subsequent feature plans to clash. Maintaining a line of consistency across each feature plan is a good thing.