Warning or error against AfterTargets/BeforeTargets depending on non-existent targets

[Arthri]

Consider the following project,

<Project>
  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
  </PropertyGroup>

  <Target Name="_T" AfterTargets="nonexistenttargetname"></Target>
</Project>

It builds with no errors or warnings under .NET 8, despite having a target define that it should run after a non-existent target