Errors building project with xaml rules and WPF user control

[jp2masa]

I'm working on a project system based on CPS and now I'm trying to implement app designer property pages, but I'm having trouble compiling a WPF user control. I'm using the new csproj.
I followed the steps in this comment to be able to compile a WPF xaml user control: dotnet/sdk#810 (comment)
But now I can't use anything compiled from xaml rules. I get no errors in intellisense, but I can't build the project, with an error like error CS0103: The name 'XSharpDebugger' does not exist in the current context. XSharpDebugger is a xaml rule.
Any idea why the compiled rules aren't being passed to the C# compiler?

[jp2masa]

EDIT: This isn't a good workaround, this scenario should just work, it's probably a problem in the project configuration.

I solved this by creating a workaround.
In case someone else has the same problem, this is the workaround I'm using:

<Target Name="FixRulesCompile" BeforeTargets="CoreCompile">
    <ItemGroup>
        <Compile Include="@(XamlPropertyRule->'$(IntermediateOutputPath)%(Filename).cs')" Exclude="@(Compile)" />
    </ItemGroup>
</Target>