Nuget is not generated when SDK is referenced

Steps
1. Create func app v2
2. Create lib (nestandard 2.0)
3. Reference SDK

```

all

```

4.( It does not work even when SDK is in private assets)
5. Change property group like so and rebuild the package:

```

netstandard2.0
true
1.0.0

```

*Result*

Nuget is generated only when SDK is removed from the project