python-dependency-injector: Injection not working for class methods

I am not quite sure if this is expected behavior or not. Methods annotated as @classmethod end up getting extra parameters injected. The following code demonstrates. I discovered this while using Closing, but filled out the example a bit as I discovered that it is a general issue for Provide.

import sys
from dependency_injector import containers, providers
from dependency_injector.wiring import Provide, Closing


def my_factory():
    return 'test-factory'


def my_resource():
    yield 'test-resource'
    print('Closing')


class Container(containers.DeclarativeContainer):

    factory = providers.Factory(my_factory)
    resource = providers.Resource(my_resource)


def do_function_thing(r:str=Closing[Provide[Container.resource]]) -> None:
    print('from function', r)


class MyClass():

    def do_instance_thing(self, r:str=Closing[Provide[Container.resource]]) -> None:
        print('from instance', r)

    @classmethod
    def do_class_thing(cls, r:str=Closing[Provide[Container.resource]]) -> None:
        print('from class', r)

    @classmethod
    def non_closing_class_thing(cls, r:str=Provide[Container.factory]) -> None:
        print('non-closing from class', r)


container = Container()
container.init_resources()
container.wire(modules=[sys.modules[__name__]])


do_function_thing()
c = MyClass()
c.do_instance_thing()

# both of these end up getting multiple values for r:
c.non_closing_class_thing()
c.do_class_thing()

The resulting output is:

from function test-resource
Closing
from instance test-resource
Closing
Traceback (most recent call last):
  File "clstest.py", line 49, in <module>
    c.non_closing_class_thing()
  File "/Users/scott/repos/github.com/scott2b/Starlight/.venv/lib/python3.8/site-packages/dependency_injector/wiring.py", line 296, in _patched
    result = fn(*args, **to_inject)
TypeError: non_closing_class_thing() got multiple values for argument 'r'