An extra class in part segmentation

[jmiemirza]

Hi!

Thank you for the nice work. I wanted to ask that why do the corruptions in PartSegmentation dataset have an extra category. The original 'number of parts' in the partnet 'clean dataset' are 50 (i.e. [0-49]).

However, I see that in the corruptions generated for PartNet dataset, there are 51 categories for parts. Can you please tell me what is the extra category?

Best,
Mirza.