dotnet watch run watches all files under wwwroot even with exclusion list

### Describe the bug
Running on .NET 5.0.201, `dotnet watch run` reloads every time a JS or CSS files is modified in wwwroot even though I have no configuration that would tell it to do so.

`dotnet watch --list` lists all files under wwwroot as well.

Adding
```xml



```
doesn't help.

### To Reproduce
I can reproduce the issue with a brand new project:
```
>dotnet new mvc
>dotnet watch --list
H:\RRL\Test\Controllers\HomeController.cs
H:\RRL\Test\Models\ErrorViewModel.cs
H:\RRL\Test\Program.cs
H:\RRL\Test\Startup.cs
H:\RRL\Test\Test.csproj
H:\RRL\Test\Views\Home\Index.cshtml
H:\RRL\Test\Views\Home\Privacy.cshtml
H:\RRL\Test\Views\Shared\Error.cshtml
H:\RRL\Test\Views\Shared\_Layout.cshtml
H:\RRL\Test\Views\Shared\_ValidationScriptsPartial.cshtml
H:\RRL\Test\Views\_ViewImports.cshtml
H:\RRL\Test\Views\_ViewStart.cshtml
H:\RRL\Test\wwwroot\css\site.css
H:\RRL\Test\wwwroot\favicon.ico
H:\RRL\Test\wwwroot\js\site.js
H:\RRL\Test\wwwroot\lib\bootstrap\dist\css\bootstrap-grid.css
H:\RRL\Test\wwwroot\lib\bootstrap\dist\css\bootstrap-grid.css.map
H:\RRL\Test\wwwroot\lib\bootstrap\dist\css\bootstrap-grid.min.css
H:\RRL\Test\wwwroot\lib\bootstrap\dist\css\bootstrap-grid.min.css.map
H:\RRL\Test\wwwroot\lib\bootstrap\dist\css\bootstrap-reboot.css
H:\RRL\Test\wwwroot\lib\bootstrap\dist\css\bootstrap-reboot.css.map
H:\RRL\Test\wwwroot\lib\bootstrap\dist\css\bootstrap-reboot.min.css
H:\RRL\Test\wwwroot\lib\bootstrap\dist\css\bootstrap-reboot.min.css.map
H:\RRL\Test\wwwroot\lib\bootstrap\dist\css\bootstrap.css
H:\RRL\Test\wwwroot\lib\bootstrap\dist\css\bootstrap.css.map
H:\RRL\Test\wwwroot\lib\bootstrap\dist\css\bootstrap.min.css
H:\RRL\Test\wwwroot\lib\bootstrap\dist\css\bootstrap.min.css.map
H:\RRL\Test\wwwroot\lib\bootstrap\dist\js\bootstrap.bundle.js
H:\RRL\Test\wwwroot\lib\bootstrap\dist\js\bootstrap.bundle.js.map
H:\RRL\Test\wwwroot\lib\bootstrap\dist\js\bootstrap.bundle.min.js
H:\RRL\Test\wwwroot\lib\bootstrap\dist\js\bootstrap.bundle.min.js.map
H:\RRL\Test\wwwroot\lib\bootstrap\dist\js\bootstrap.js
H:\RRL\Test\wwwroot\lib\bootstrap\dist\js\bootstrap.js.map
H:\RRL\Test\wwwroot\lib\bootstrap\dist\js\bootstrap.min.js
H:\RRL\Test\wwwroot\lib\bootstrap\dist\js\bootstrap.min.js.map
H:\RRL\Test\wwwroot\lib\bootstrap\LICENSE
H:\RRL\Test\wwwroot\lib\jquery-validation-unobtrusive\jquery.validate.unobtrusive.js
H:\RRL\Test\wwwroot\lib\jquery-validation-unobtrusive\jquery.validate.unobtrusive.min.js
H:\RRL\Test\wwwroot\lib\jquery-validation-unobtrusive\LICENSE.txt
H:\RRL\Test\wwwroot\lib\jquery-validation\dist\additional-methods.js
H:\RRL\Test\wwwroot\lib\jquery-validation\dist\additional-methods.min.js
H:\RRL\Test\wwwroot\lib\jquery-validation\dist\jquery.validate.js
H:\RRL\Test\wwwroot\lib\jquery-validation\dist\jquery.validate.min.js
H:\RRL\Test\wwwroot\lib\jquery-validation\LICENSE.md
H:\RRL\Test\wwwroot\lib\jquery\dist\jquery.js
H:\RRL\Test\wwwroot\lib\jquery\dist\jquery.min.js
H:\RRL\Test\wwwroot\lib\jquery\dist\jquery.min.map
H:\RRL\Test\wwwroot\lib\jquery\LICENSE.txt

### Exceptions (if any)
N/A

### Further technical details
```
.NET SDK (reflecting any global.json):
Version: 5.0.201
Commit: a09bd5c86c

Runtime Environment:
OS Name: Windows
OS Version: 10.0.19042
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\5.0.201\

Host (useful for support):
Version: 5.0.4
Commit: f27d337295

.NET SDKs installed:
3.1.302 [C:\Program Files\dotnet\sdk]
3.1.402 [C:\Program Files\dotnet\sdk]
5.0.100 [C:\Program Files\dotnet\sdk]
5.0.101 [C:\Program Files\dotnet\sdk]
5.0.102 [C:\Program Files\dotnet\sdk]
5.0.103 [C:\Program Files\dotnet\sdk]
5.0.201 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.All 2.1.24 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.1.24 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 3.1.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 3.1.8 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 3.1.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 5.0.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 5.0.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 5.0.3 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 5.0.4 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 2.1.24 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 3.1.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 3.1.8 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 3.1.11 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 5.0.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 5.0.2 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 5.0.3 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 5.0.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 3.1.6 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 3.1.8 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 3.1.11 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 5.0.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 5.0.2 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 5.0.3 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 5.0.4 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
```