[XmlRcp] TypeError: cannot marshal <class 'collections.defaultdict'> objects (account.move -> tax_totals)

[Prometee]

Impacted versions: 16

Steps to reproduce:

Use Ddoo Docker official image and run it with this options :

docker run -p 8069:8069 --env HOST=host.docker.internal --name odoo_16 --pull missing -t odoo:16 -- --database odoo-master-v16 --init "l10n_fr,account_accountant,sale_management"

Make an XMLRPC call "search_read" on the model account.move requesting all fields except needed_terms (see #129493).

Current behavior:

Traceback (most recent call last):
  File "/usr/lib/python3.9/xmlrpc/client.py", line 516, in __dump
    f = self.dispatch[type(value)]
KeyError: <class 'collections.defaultdict'>

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/odoo/addons/base/controllers/rpc.py", line 148, in xmlrpc_2
    except Exception as error:
  File "/usr/lib/python3/dist-packages/odoo/addons/base/controllers/rpc.py", line 129, in _xmlrpc
  File "/usr/lib/python3.9/xmlrpc/client.py", line 975, in dumps
    data = m.dumps(params)
  File "/usr/lib/python3.9/xmlrpc/client.py", line 508, in dumps
    dump(v, write)
  File "/usr/lib/python3.9/xmlrpc/client.py", line 530, in __dump
    f(self, value, write)
  File "/usr/lib/python3.9/xmlrpc/client.py", line 583, in dump_array
    dump(v, write)
  File "/usr/lib/python3.9/xmlrpc/client.py", line 530, in __dump
    f(self, value, write)
  File "/usr/lib/python3.9/xmlrpc/client.py", line 601, in dump_struct
    dump(v, write)
  File "/usr/lib/python3.9/xmlrpc/client.py", line 530, in __dump
    f(self, value, write)
  File "/usr/lib/python3.9/xmlrpc/client.py", line 601, in dump_struct
    dump(v, write)
  File "/usr/lib/python3.9/xmlrpc/client.py", line 520, in __dump
    raise TypeError("cannot marshal %s objects" % type(value))
TypeError: cannot marshal <class 'collections.defaultdict'> objects

Expected behavior: No error

The field causing this error is tax_totals

[niyasraphy]

fixed in: cc61b92