All async methods seems to be excluded in coverlet.msbuild 2.8.1

[PolarbearDK]

Just upgraded from coverlet.msbuild 2.6.3 to 2.8.1.
Report no longer shows coverage for any methods with the async keyword

This is the most simple example I could find in our code base:

public async Task<ConductedInterview[]> GetConductedInterviews(Guid citizenId)
{
  return (await GetInterviewInfo(citizenId)).Conducted;
}

The async methods were covered/not covered in 2.6.3.
With 2.8.1 they are ignored (grey in report).

[MarcoRossignoli]

Are you using /p:ExcludeByAttribute=CompilerGeneratedAttribute?Possible dup of #794

[PolarbearDK]

We do indeed have that exclution. Looks much better without it.

Thanks!