Environment

• Pythonnet version: master
• Python version: any
• Operating System: any

Details

1. InitializeRuntime
2. Create a fewPyObjects, keep them somewhere
3. ShutdownRuntime
4. InitializeRuntime the second time
5. Clear all alive reference to objects from step 2.
6. CallGC.Collect andWaitForPendingFinalizers

Expected:XDecref should never be called on the handles inPyObjects from step 2.
Actual:XDecref is called on the handles inPyObjects from step 2.

I saw this happen even to .NET types reflected to Python likeSystem.MulticastDelegate. Will soon open a PR with repro.