zanzibar: <Sargon> read <nimh>'s comment, which correctly describes the initial position given by the FEN.
The trouble is, whereas the FEN works in a comment, it doesn't work for pgn4web at move 8, when 8.b5 isn't possible for the normal b-pawn starting at b2.
It also doesn't work for SCID (which complains about illegal FEN).
ChessBase, unfortunately, silently sloughs off the game moves without notifying the user about its inability to process the FEN.
Most modern viewers don't allow equal pieces in the opening position.
What should <CG> do?
Either delete the game or just include the PGN as a giant comment with notice of possible viewer failings.
I don't know if this game is historically significant enough to keep, really.