Up-to-Date Check can skip a build that should run and fail.

## Visual Studio Version

Version 17.2.0 Preview 1.0 [32121.159.main]

## Summary

We can get into a situation where running a regular build on a project will lead to an apparent success (because the Fast Up-to-Date Check skips it) when it should actually fail with an error.

## Steps to Reproduce

1. Create a new C# Console application targeting .NET 6.0.
2. Add the following to Program.cs:
```
var dictionary = new Dictionary();

dictionary.Keys.Contains("hello world");
```
3. In Solution Explorer, expand Dependencies | Analyzers | Microsoft.CodeAnalysis.CSharp.NetAnalyzers.
4. Right click on "CA1841: Prefer Dictionary.Contains methods" and set the severity to "Error".
5. Run the application with Ctrl+F5. The build will succeed and the application will run because we're skipping the analyzers, even though the analyzer would produce an error.
6. Close the window opened by the app.
7. Right-click on the project in Solution Explorer and select "Build".

## Expected Behavior

The project will build, and the build will fail due to the CA1841 errors created by the analyzer.

## Actual Behavior

The Fast Up-to-Date Check skips the build of the project, and it appears to succeed.

## User Impact

Build appears to succeed where it should fail.