[Question] Pruning the target object

[psi0000]

HI, run the visualize_graph.py and I feel strange about log

---

included object of category: keyboard piano
included object of category: keyboard piano
included object of category: keyboard piano
included object of category: keyboard piano
...

---

So, I tested pruning the target object (keyboard piano) in 00824-Dd4bFSTQ8gi scene graph
And ,then I got the result

In this image, keyboard piano vertices in object json file include other points(not keyboard piano)

So, I want to get the information about this problem.

Thank you