Deployment Extension Configuration Item Fails SqlBuild

[znamenap]

• SqlPackage or DacFx Version: microsoft.build.sql\0.1.12-preview
• .NET Framework (Windows-only) or .NET Core: .NET Core
• Environment (local platform and source/target platforms): build on windows using .net 6

Steps to Reproduce:

1. Checkout the branch at https://github.com/znamenap/DacFx/tree/DeploymentExtensionsFailsSqlBuild/samples/DeploymentExtensionsFailsSqlBuild/SampleDatabase
2. Change directory to samples\DeploymentExtensionsFailsSqlBuild\SampleDatabase
3. Build the project via dotnet build
4. The build produces

seeding.data.sql(4,1,4,1): Build error SQL70001: This statement is not recognized in this context.

6. This is a regression compared to .NET Framework solution, it successfully accepted the file as the extension for a contributor.
7. I'm expecting the build would pass the item to contributors.
8. I'm expecting the build would still validate SQL syntax if the extension is .sql and references to SQL objects, although this feature was not part of previous .NET Framework based implementation.

Did this occur in prior versions? If not - which version(s) did it work in? It worked in .NET Framework based project without SDK-like project.

MSBuild 17.7.1+971bf70db
microsoft.build.sql\0.1.12-preview

Proposal:
I'm suggesting to fix this in SDK.targets similarly as PostDeploy and PreDeploy. Similarly, I believe, the same applies to BuildExtensionConfiguration.

  <ItemGroup>
    <!-- Remove files specified as PreDeploy, PostDeploy, and None scripts from build -->
    <Build Remove="@(PreDeploy)" />
    <Build Remove="@(PostDeploy)" />
    <Build Remove="@(None)" />
    <Build Remove="@(DeploymentExtensionConfiguration)" />
    <Build Remove="@(BuildExtensionConfiguration)" />
  </ItemGroup>