Re: [Koha] acquistion and cataloging

hi all, when I was searching at koha's demo data I've saw every data entered twice at aqbookfund table for example: INSERT INTO aqbookfund VALUES ('1','Adult Non-Fiction','1'); INSERT INTO aqbookfund VALUES ('1','Adult Non-Fiction','1'); INSERT INTO aqbookfund VALUES ('5','Young Adult Fiction','3'); INSERT INTO aqbookfund VALUES ('5','Young Adult Fiction','3'); INSERT INTO aqbookfund VALUES ('4','Fiction','2'); INSERT INTO aqbookfund VALUES ('4','Fiction','2'); INSERT INTO aqbookfund VALUES ('2','Talking books','4'); INSERT INTO aqbookfund VALUES ('2','Talking books','4'); .... is there any important function of entering like this?