Unable to build net6.0-ios in the .NET 7 SDK

[mattleibow]

Steps to Reproduce

1. Make sure you have the .NET 7 SDK and iOS workloads installed
2. donet new ios
3. Edit the csproj to be net6.0-ios instead of net7.0-ios
4. Build
5. Observe error:

   C:\Projects\maui\bin\dotnet\sdk\7.0.100-preview.6.22316.8\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Sdk.FrameworkReferenceResolution.targets(368,5): error NETSDK1073: The FrameworkReference 'Microsoft.iOS' was not recognized.

Expected Behavior

Builds the app.

Actual Behavior

Compiler error.

Environment

Version information

Build Logs

msbuild.zip

[rolfbjarne]

Yes, this is currently work in progress.

[rolfbjarne]

Dup of #15672.