aspnetcore: Running ASP.NET Core application with PublishTrimmed set in visual studio makes Microsoft.AspNetCore.Watch.BrowserRefresh fail to execute

Describe the bug

When <PublishTrimmed> is set in the csproj, causes Microsoft.AspNetCore.Watch.BrowserRefresh to fail. I’m guessing hosting startups will fail when trimmed but I’m surprised this affects the developer experience.

To Reproduce

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <Nullable>enable</Nullable>
    <PublishTrimmed>true</PublishTrimmed>
  </PropertyGroup>

</Project>

var builder = WebApplication.CreateBuilder(args);
var app = builder.Build();

app.MapGet("/", () => "Hello World!");

app.Run();

Exceptions (if any)

crit: Microsoft.AspNetCore.Hosting.Diagnostics[11]
      Hosting startup assembly exception
      System.InvalidOperationException: Startup assembly Microsoft.AspNetCore.Watch.BrowserRefresh failed to execute. See the inner exception for more details.
       ---> System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.AspNetCore.Watch.BrowserRefresh, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.
      File name: 'Microsoft.AspNetCore.Watch.BrowserRefresh, Culture=neutral, PublicKeyToken=null'
         at System.Reflection.RuntimeAssembly.InternalLoad(ObjectHandleOnStack assemblyName, ObjectHandleOnStack requestingAssembly, StackCrawlMarkHandle stackMark, Boolean throwOnFileNotFound, ObjectHandleOnStack assemblyLoadContext, ObjectHandleOnStack retAssembly)
         at System.Reflection.RuntimeAssembly.InternalLoad(AssemblyName assemblyName, RuntimeAssembly requestingAssembly, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, AssemblyLoadContext assemblyLoadContext)
         at System.Reflection.Assembly.Load(AssemblyName assemblyRef)
         at Microsoft.AspNetCore.Hosting.GenericWebHostBuilder.ExecuteHostingStartups()
         --- End of inner exception stack trace ---

Further technical details

• ASP.NET Core version: Microsoft.AspNetCore.App 6.0.0-rc.1.21406.15

cc @pranavkm @eerhardt