[3.3.0-candidate] failure when arch is requested as a filter

2022-12-08-11:30:57 root DEBUG ERROR failed to bootstrap model: cannot start bootstrap instance: failed to acquire node: unexpected: ServerError: 500 Internal Server Error (list.append() takes exactly one argument (3 given))
2022-12-08-11:30:58 root ERROR [localhost] Command failed: juju bootstrap --bootstrap-constraints 'arch=arm64 tags=juju ' --config bootstrap-timeout=1800 --bootstrap-series focal --model-default /home/ubuntu/project/generated/juju_maas_controller/model_defaults.yaml maas_cloud foundations-maas

Found this in a log

2022-12-08 11:30:57 maasserver: [error] ################################ Exception: list.append() takes exactly one argument (3 given) ################################
2022-12-08 11:30:57 maasserver: [error] Traceback (most recent call last):
  File "/snap/maas/25212/usr/lib/python3/dist-packages/django/core/handlers/base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/snap/maas/25212/lib/python3.10/site-packages/maasserver/utils/views.py", line 293, in view_atomic_with_post_commit_savepoint
    return view_atomic(*args, **kwargs)
  File "/usr/lib/python3.10/contextlib.py", line 79, in inner
    return func(*args, **kwds)
  File "/snap/maas/25212/lib/python3.10/site-packages/maasserver/api/support.py", line 62, in __call__
    response = super().__call__(request, *args, **kwargs)
  File "/snap/maas/25212/usr/lib/python3/dist-packages/django/views/decorators/vary.py", line 20, in inner_func
    response = func(*args, **kwargs)
  File "/snap/maas/25212/usr/lib/python3.10/dist-packages/piston3/resource.py", line 197, in __call__
    result = self.error_handler(e, request, meth, em_format)
  File "/snap/maas/25212/usr/lib/python3.10/dist-packages/piston3/resource.py", line 195, in __call__
    result = meth(request, *args, **kwargs)
  File "/snap/maas/25212/lib/python3.10/site-packages/maasserver/api/support.py", line 370, in dispatch
    return function(self, request, *args, **kwargs)
  File "/snap/maas/25212/lib/python3.10/site-packages/maasserver/api/machines.py", line 2539, in allocate
    if not form.is_valid():
  File "/snap/maas/25212/usr/lib/python3/dist-packages/django/forms/forms.py", line 175, in is_valid
    return self.is_bound and not self.errors
  File "/snap/maas/25212/usr/lib/python3/dist-packages/django/forms/forms.py", line 170, in errors
    self.full_clean()
  File "/snap/maas/25212/usr/lib/python3/dist-packages/django/forms/forms.py", line 372, in full_clean
    self._clean_fields()
  File "/snap/maas/25212/usr/lib/python3/dist-packages/django/forms/forms.py", line 393, in _clean_fields
    value = getattr(self, 'clean_%s' % name)()
  File "/snap/maas/25212/lib/python3.10/site-packages/maasserver/node_constraint_filter_forms.py", line 1028, in clean_arch
    arches.append(*architecture_wildcards[value])
TypeError: list.append() takes exactly one argument (3 given)

MAAS logs

https://oil-jenkins.canonical.com/artifacts/c3d5424d-5151-4031-8a96-f8be131701bc/generated/generated/maas/logs-2022-12-08-11.31.36.tgz