Unable to activate marketing_campaign without sale_opportunity

I have a virtualenv with both marketing_campaing and sale modules installed. sale_opportunity module is not installed as it is not a mandatory dependency.

When activating the marketing_camaign module on the database I get the following error:

Traceback (most recent call last):
  File "/home/pokoli/.virtualenvs/grafman/bin/trytond-admin", line 31, in <module>
    admin.run(options)
  File "/home/pokoli/.virtualenvs/grafman/lib/python3.11/site-packages/trytond/admin.py", line 57, in run
    pool.init(update=options.update, lang=list(lang),
  File "/home/pokoli/.virtualenvs/grafman/lib/python3.11/site-packages/trytond/pool.py", line 155, in init
    self.start()
  File "/home/pokoli/.virtualenvs/grafman/lib/python3.11/site-packages/trytond/pool.py", line 108, in start
    register_classes(with_test=cls.test)
  File "/home/pokoli/.virtualenvs/grafman/lib/python3.11/site-packages/trytond/modules/__init__.py", line 362, in register_classes
    the_module = import_module(module)
                 ^^^^^^^^^^^^^^^^^^^^^
  File "/home/pokoli/.virtualenvs/grafman/lib/python3.11/site-packages/trytond/modules/__init__.py", line 52, in import_module
    module = importlib.import_module(fullname)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1206, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1178, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1149, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/home/pokoli/.virtualenvs/grafman/lib/python3.11/site-packages/trytond/modules/marketing_campaign/__init__.py", line 16, in <module>
    from . import marketing, sale, sale_opportunity_reporting, sale_reporting
  File "/home/pokoli/.virtualenvs/grafman/lib/python3.11/site-packages/trytond/modules/marketing_campaign/sale_opportunity_reporting.py", line 81, in <module>
    class Marketing(MarketingCampaignMixin, Abstract, ModelView):
  File "/home/pokoli/.virtualenvs/grafman/lib/python3.11/site-packages/trytond/pool.py", line 21, in __new__
    new = type.__new__(cls, name, bases, dct)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: Cannot create a consistent method resolution
order (MRO) for bases Model, object, ModelView