Duplicate entries in Sony - Playstation.dat

[dglava]

I have noticed that some games have duplicate entries in the metadat/redump/Sony - PlayStation.dat.
Example Tom Clancy's Rainbow Six (Europe) (En,Fr,It) starting on line 73404:

game (
	name "Tom Clancy's Rainbow Six (Europe) (En,Fr,It)"
	region "Europe"
	serial "SLES-01136"
	rom ( name "Tom Clancy's Rainbow Six (Europe) (En,Fr,It) (Track 01).bin" size 168753648 crc 465A5AF3 md5 58138E00F9D53129E01AF83E521CD298 sha1 A4197EF3B7297F6186EC9D0DF619587BC70D631C serial "SLES-01136" )
)
game (
	name "Tom Clancy's Rainbow Six (Europe) (En,Fr,It)"
	region "Europe"
	serial "SLES-01136"
	rom ( name "Tom Clancy's Rainbow Six (Europe) (En,Fr,It) (Track 01).bin" size 168753648 crc 465A5AF3 md5 58138E00F9D53129E01AF83E521CD298 sha1 A4197EF3B7297F6186EC9D0DF619587BC70D631C serial "SLES-01136" )
)

Does this serve a purpose or is it redundant and can be removed?