Crash when attempting to add custom property to UnbrandedTypeSpec

[JoshLove-msft]

namespace UnbrandedTypeSpec
{
    /// <summary>
    ///
    /// </summary>
    public partial class Thing
    {
        [CodeGenMember("Name")]
        public string? Rename { get; set; }
    }
}

C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\TestProjects\Local\Unbranded-TypeSpec [main ≡ +1 ~0 -0 | +0 ~1 -0 !]> tsp compile .\Unbranded-TypeSpec.tsp --emit "@typespec/http-client-csharp" --option @typespec/http-client-csharp.emitter-output-dir=C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\TestProjects\Local\Unbranded-TypeSpec --option @typespec/http-client-csharp.save-inputs=true --option @typespec/http-client-csharp.clear-output-folder=false
TypeSpec compiler v0.65.0

[Warn]: Enum 'Versions' must have either a summary or doc
Sequence contains no matching element
   at System.Linq.ThrowHelper.ThrowNoMatchException()
   at System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate)
   at Microsoft.TypeSpec.Generator.ClientModel.Providers.ScmMethodProviderCollection.GetSpreadConversion(TypeProvider spreadSource) in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator.ClientModel\src\Providers\ScmMethodProviderCollection.cs:line 167
   at Microsoft.TypeSpec.Generator.ClientModel.Providers.ScmMethodProviderCollection.GetStackVariablesForProtocolParamConversion(IReadOnlyList`1 convenienceMethodParameters, Dictionary`2& declarations) in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator.ClientModel\src\Providers\ScmMethodProviderCollection.cs:line 155
   at Microsoft.TypeSpec.Generator.ClientModel.Providers.ScmMethodProviderCollection.BuildConvenienceMethod(MethodProvider protocolMethod, Boolean isAsync) in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator.ClientModel\src\Providers\ScmMethodProviderCollection.cs:line 94
   at Microsoft.TypeSpec.Generator.ClientModel.Providers.ScmMethodProviderCollection.BuildMethods() in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator.ClientModel\src\Providers\ScmMethodProviderCollection.cs:line 45
   at Microsoft.TypeSpec.Generator.Providers.MethodProviderCollection.get_MethodProviders() in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator\src\Providers\MethodProviderCollection.cs:line 26
   at Microsoft.TypeSpec.Generator.Providers.MethodProviderCollection.GetEnumerator() in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator\src\Providers\MethodProviderCollection.cs:line 40
   at System.Collections.Generic.List`1.AddRange(IEnumerable`1 collection)
   at Microsoft.TypeSpec.Generator.ClientModel.Providers.ClientProvider.BuildMethods() in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator.ClientModel\src\Providers\ClientProvider.cs:line 490
   at Microsoft.TypeSpec.Generator.Providers.TypeProvider.BuildMethodsInternal() in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator\src\Providers\TypeProvider.cs:line 264
   at Microsoft.TypeSpec.Generator.Providers.TypeProvider.get_Methods() in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator\src\Providers\TypeProvider.cs:line 181
   at Microsoft.TypeSpec.Generator.Providers.TypeProvider.EnsureBuilt() in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator\src\Providers\TypeProvider.cs:line 375
   at Microsoft.TypeSpec.Generator.LibraryVisitor.Visit(OutputLibrary library) in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator\src\LibraryVisitor.cs:line 20
   at Microsoft.TypeSpec.Generator.CSharpGen.ExecuteAsync() in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator\src\CSharpGen.cs:line 54
   at Microsoft.TypeSpec.Generator.GeneratorRunner.RunAsync(CommandLineOptions options) in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator\src\StartUp\GeneratorRunner.cs:line 16
   at Microsoft.TypeSpec.Generator.Program.Run(CommandLineOptions options, GeneratorRunner runner) in C:\Users\jolov\repos\typespec\packages\http-client-csharp\generator\Microsoft.TypeSpec.Generator\src\StartUp\Program.cs:line 41
Emitter "@typespec/http-client-csharp" crashed! This is a bug.
Please file an issue at https://github.com/Microsoft/typespec/issues