Bug in csplit

[Bhagya]

Hi,

I have installed the package GNUCoreUtils using coreutils-5.3.0.exe.
When I was checking with the csplit command with the below example, i found
a bug

csplit abc.txt 5 -f abccc -b %02d.txt

File abc.txt is an ascii file with 24 records as below
aaaaaaaaa,ddddddddddddd,ggggggggg,hhhhhhhhh
aaaaaaaaa,ddddddddddddd,ggggggggg,hhhhhhhhh
aaaaaaaaa,ddddddddddddd,ggggggggg,hhhhhhhhh
aaaaaaaaa,ddddddddddddd,ggggggggg,hhhhhhhhh

The above command gave two files as abccc00.txt and abccc01.txt
abccc00.txt had 4 records and abccc01.txt had 20 records


I was expecting to get 6 split files.

If it is not a bug please guide me to use this command in a right way

Thanks,
Bhagya