The report above appears to reference .local/jupyter/kernels/python3/kernel.json , which would be a user-local kernel file not installed by the package.
If the kernel file is wrong, I don't think this is a bug in jupyter-notebook. If the system-installed kernel file /usr/share/jupyter/kernels/python3/kernel.json refers to python[2], that would be a bug in python3-ipykernel