Racing kings games starting from June 2021 have invalid FEN tag

[niklasf]

Example:

[Event "Rated Racing Kings game"]
[Site "https://lichess.org/zjd7TXD6"]
[Date "2021.09.01"]
[Round "-"]
[White "Nvincable"]
[Black "Fabi-Car"]
[Result "1-0"]
[UTCDate "2021.09.01"]
[UTCTime "00:00:11"]
[WhiteElo "1578"]
[BlackElo "1650"]
[WhiteRatingDiff "+7"]
[BlackRatingDiff "-14"]
[TimeControl "120+0"]
[Termination "Normal"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]
[SetUp "1"]
[Variant "Racing Kings"]

1. Kg3 { [%clk 0:02:00] } 1... Nxf2 { [%clk 0:02:00] } 2. Kf4 { [%clk 0:02:00] } 2... Nxh1 { [%clk 0:01:58] } 3. Ke5 { [%clk 0:01:56] } 3... Ka3 { [%clk 0:01:38] } 4. Kf6 { [%clk 0:01:56] } 4... Qa2 { [%clk 0:01:32] } 5. Kg7 { [%clk 0:01:45] } 5... Rb8 { [%clk 0:01:29] } 6. Rxh1 { [%clk 0:01:42] } 6... Rf8 { [%clk 0:01:21] } 7. Kxf8# { [%clk 0:01:34] } 1-0

[niklasf]

The file was written:

-rw-r--r-- 1 root root 11255288 Jul  1 14:45 lichess_db_racingKings_rated_2021-06.pgn.bz2
-rw-r--r-- 1 root root      537 Jul  1 14:45 lichess_db_racingKings_rated_2021-06.pgn.bz2.torrent

I see no relevant commits in this repository. That leaves database format changes :thinking: