After you file

Here's what "Cancel Amend" says:

 

Are you sure you want to cancel your amended return?
If you cancel your amended return, any changes you've made to your original return won't be deleted. You'll have to go back and manually delete your changes.

 

1) "any changes you've made to your original return won't be deleted"  Why?  How is that helpful to the customer wanting to start their amended filing over from scratch?

2) "You'll have to go back and manually delete your changes" Except that is isn't possible to delete forms or worksheets, which is commonly needed when turbotax gets confused.