dapr-wf-csharp-1211

This repo is a repro for dapr/dotnet-sdk#1211.

Running the repro

To run and validate that the code is working correctly, run:

1. Open in a dev container in VS Code
2. Run dapr init
3. Run dapr run -f . to start the app
4. Run echo '[ "test1", "hello" ]' | ./scripts/run-workflow.sh to trigger a workflow and display the output

With the code in the initial state, the above should run correctly and output something similar to the output below:

Refreshing workflow status...
Status: Completed - done
Workflow complete
{
  "id": "f837bbf8-f8d6-4efe-91f8-149d286024b3",
  "status": "Completed",
  "result": [
    "uftu1",
    "ifmmp"
  ]
}

To reproduce the issue, comment out the ToList() call in ProcessingWorkflow.cs and re-run. With the ToList() commented out, the workflow no longer completes.