Received an amended 1099 DIV & want to download it

I started my return but I did not download the original 1099 DIV because I knew that I would receive an amended 1099 DIV.  The amended 1099 is now available.  How do I know that TT will download the amended 1099?  Only one 1099 DIV is listed in TT & the amount of ordinary divs plus cap gains is the same for both the original & the amended 1099.