why each time I do a file sync,

I executed
rsync --progress --verbose --stats --recursive
test@100.100.100.100::test /home/test2 --stats

but each time it showed me files are being transfer but actually the
files is not changed or updated any.
for example,

12 100% 0.00kB/s 0:00:00
abcdef
44 100% 0.00kB/s 0:00:00
demo2
0 100% 0.00kB/s 157:26:58
demo3
0 100% 0.00kB/s 157:26:58
xyz
0 100% 0.00kB/s 157:26:58
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