Freya.Hopac doesn't work once converted to use paket

[panesofglass]

Steps to reproduce:

1. Install Freya.Template using dotnet new -i Freya.Template
2. Generate a new Freya project using Kestrel and Hopac, e.g. mkdir test && cd test && dotnet new freya -n Test -o src/Test -f kestrel -c hopac
3. Run dotnet build src/Test && dotnet src/Test/bin/Debug/netcoreapp2.1/Test.dll to verify the project builds and runs by navigating to http://localhost:5000/hello in a browser
4. Download paket.bootstrapper.exe and rename to paket.exe in the .paket folder
5. Run mono ./.paket/paket.exe convert-from-nuget
6. Run dotnet build src/Test && dotnet src/Test/bin/Debug/netcoreapp2.1/Test.dll to verify the project builds and runs but fails to return results by navigating to http://localhost:5000/hello in a browser

Actual:
Web app appears to run but returns no response.

Expected:
Following the same steps above without specifying the -c option uses async, and that converts to using paket successfully.

Known workarounds:
Don't use paket.