This tactic in the queen's gambit declined is new to me!
Some minutes ago i blundered away a live blitz game, so i had to check what was wrong about the opening. I found one also very short game with that same 7th black move.
First my game:
So, and here is the game i found in the database:
Nf6-e4 is somtimes possible. It is well known in the Lasker variation and black can play that also in some exchange variation lines. But not here.
And Bxh7+ was not a move i concidered here in a very fast live game. Maybe i would find it in a 45|45 or longer game when i try hard to find all active moves. But now i should remember this one, if it ever happens again. :)