question about deduplication cluster size

[everks]

As shown in following picture, the cluster starting at 0x02954cb9 has the size of 3.

but when I count it using bytes.count(), it shows 2.

I tried different datasets and observed the same phenomenon.
Did I make a mistake about the size meaning?

[everks]

I also check the overlapping substrings using a for loop, answer is still 2.

[everks]

Little awkward. I mistake the size meaning. Finally i find it in main.rs (because I don't familiar with rust, so I didn't go to the file first time). Just paste a snippet here

I sincerely suggest you can add format explain in readme.