The ppc64 machine in our lab fails during commissioning

Running maas 3.3.0~alpha1-12569-g.9563e6a72 installed by snap on our lab.
Our ppc64 machine fails to commissioning.

This Tracebock is shown in /var/snap/maas/common/log/regiond.log :

2022-09-05 13:57:39 metadataserver.api: [critical] ppc64el.maas(8ephka): commissioning script '50-maas-01-commissioning' failed during post-processing.
        Traceback (most recent call last):
          File "/snap/maas/23549/lib/python3.10/site-packages/metadataserver/api.py", line 856, in signal
            target_status = process(node, request, status)
          File "/snap/maas/23549/lib/python3.10/site-packages/metadataserver/api.py", line 680, in _process_commissioning
            self._store_results(
          File "/snap/maas/23549/lib/python3.10/site-packages/metadataserver/api.py", line 565, in _store_results
            script_result.store_result(
          File "/snap/maas/23549/lib/python3.10/site-packages/metadataserver/models/scriptresult.py", line 372, in store_result
            signal_status = try_or_log_event(
        --- <exception caught here> ---
          File "/snap/maas/23549/lib/python3.10/site-packages/metadataserver/api.py", line 483, in try_or_log_event
            func(*args, **kwargs)
          File "/snap/maas/23549/lib/python3.10/site-packages/metadataserver/builtin_scripts/hooks.py", line 1118, in process_lxd_results
            _process_lxd_resources(node, data)
          File "/snap/maas/23549/lib/python3.10/site-packages/metadataserver/builtin_scripts/hooks.py", line 639, in _process_lxd_resources
            update_node_devices(
          File "/snap/maas/23549/lib/python3.10/site-packages/metadataserver/builtin_scripts/hooks.py", line 584, in update_node_devices
            _process_pcie_devices(add_func, data)
          File "/snap/maas/23549/lib/python3.10/site-packages/metadataserver/builtin_scripts/hooks.py", line 488, in _process_pcie_devices
            add_func(
          File "/snap/maas/23549/lib/python3.10/site-packages/metadataserver/builtin_scripts/hooks.py", line 405, in _add_or_update_node_device
            _add_node_device_vpd(node_device, device_vpd)
          File "/snap/maas/23549/lib/python3.10/site-packages/metadataserver/builtin_scripts/hooks.py", line 471, in _add_node_device_vpd
            NodeDeviceVPD.objects.bulk_create(
          File "/snap/maas/23549/usr/lib/python3/dist-packages/django/db/models/manager.py", line 85, in manager_method
            return getattr(self.get_queryset(), name)(*args, **kwargs)
          File "/snap/maas/23549/usr/lib/python3/dist-packages/django/db/models/query.py", line 514, in bulk_create
            returned_columns = self._batched_insert(
          File "/snap/maas/23549/usr/lib/python3/dist-packages/django/db/models/query.py", line 1287, in _batched_insert
            inserted_rows.extend(self._insert(
          File "/snap/maas/23549/usr/lib/python3/dist-packages/django/db/models/query.py", line 1270, in _insert
            return query.get_compiler(using=using).execute_sql(returning_fields)
          File "/snap/maas/23549/usr/lib/python3/dist-packages/django/db/models/sql/compiler.py", line 1416, in execute_sql
            cursor.execute(sql, params)
          File "/snap/maas/23549/lib/python3.10/site-packages/maasserver/prometheus/middleware.py", line 22, in execute
            return super().execute(sql, params=params)
          File "/snap/maas/23549/usr/lib/python3/dist-packages/django/db/backends/utils.py", line 66, in execute
            return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
          File "/snap/maas/23549/usr/lib/python3/dist-packages/django/db/backends/utils.py", line 75, in _execute_with_wrappers
            return executor(sql, params, many, context)
          File "/snap/maas/23549/usr/lib/python3/dist-packages/django/db/backends/utils.py", line 84, in _execute
            return self.cursor.execute(sql, params)
        builtins.ValueError: A string literal cannot contain NUL (0x00) characters.