Adding more than three points results in Nonetype error.

[helvince]

Adding more than three points results in Nonetype error.

In SamV2_pipeline, add_point, if check_if_our_z_is_new and not (check_if_our_annotation_is_new):
self.prompts[ann_obj_id] = existing_val.append(
[ann_frame_idx, points, labels]
)
sets self.prompts to None. Appending/extending lists is a function call and does not yield a modified object (returning None). The resulting {ann_obj_id: None} will discard previous inputs and keeps returning nonetype. The suggested solution would be:
existing_val.append([ann_frame_idx, points, labels])
self.prompts[ann_obj_id] = existing_val