mora currently lists the release date for this single as 2020.06.19 because it was removed and readded at some point.
The original date it was released was Jan 05, 2018 as evidenced here:
http://www.sonymusic.co.jp/artist/De...ve/info/490260
and also on iTunes where the release date hasn't been updated:
https://music.apple.com/jp/album/1326040543
The associated barcodes/catalog numbers do not appear to have been affected by the removal and readdition.