[Bug: eval_vae_chair.sh] Reconstructed models have all node_id=0

[GregorKobsik]

After running the script code\scripts\eval_vae_chair.sh I managed to encode and decode some shapes.
Unfortunately, all reconstructed models recon.json have the parameter "id" set always to 0.

Upon inspecting the code and the model (used model: model_structure_net_mesh.py), I could find, that the parameter node_id from Tree.Node(...) is never set, when reconstructing a shape, thus per default always a 0.

Therefore the visualization script is unable to visualize the reconstructed structure.

Is this correct or a bug in the code which can be easily fixed?