Registering an encoder implemented in Python breaks the constructing of other Python-implemented encoders

[TrianecT-Simon]

Environment

• Pythonnet version: 3.0.3
• Python version: 3.12.2
• Operating System: Windows 11 (23H2)
• .NET Runtime: .NET Framework 4.8.9232.0 (also .NET 8.0.4, but I am unable to provide a minimal example)

Details

• Describe what you were trying to get done.

I am working on a Python project that interacts with a .NET library and am trying to write an IPyObjectEncoder implementation in Python to make dealing with certain types a bit easier.
However I am running into an issue, as for some reason registering a Python-implemented encoder will cause the next Python-implemented encoder to throw an exception when constructing it.

Placing or moving around seemingly random things sometimes 'fixes' the crash. I've had cases where even removing any of the 3 imports in from System.Collections.Generic import IList, List, Dictionary (even though none of them were used in the Python code) would suddenly work around the crash. But I am unable to reproduce this again.

• What commands did you run to trigger this issue? If you can provide a
  Minimal, Complete, and Verifiable example
  this will help us understand the issue.

import clr
from Python.Runtime import PyObjectConversions, IPyObjectEncoder
from Python.Runtime.Codecs import RawProxyEncoder
import System

class DummyEncoder1(IPyObjectEncoder):
    __namespace__ = "CustomPyCodecs"

    def CanEncode(self, clr_type):
        return False

    def TryEncode(self, clr_object):
        return None

class DummyEncoder2(IPyObjectEncoder):
    __namespace__ = "CustomPyCodecs"

    def CanEncode(self, clr_type):
        return False

    def TryEncode(self, clr_object):
        return None

PyObjectConversions.RegisterEncoder(DummyEncoder1())
# System.Activator.CreateInstance(System.Int32)  # Uncomment me to somehow fix DummyEncoder2()
encoder_2 = DummyEncoder2()

• If there was a crash, please include the traceback here.

TypeError: Invoked a non-static method with an invalid instance

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "F:\repos\pyclr\minimal_issue_framework.py", line 25, in <module>
    encoder_2 = DummyEncoder2()
                ^^^^^^^^^^^^^^^
TypeError: No method matches given arguments for DummyEncoder2..ctor: ()