JsRuntime is null on dispose on JsObjectWrapperBase

[cpiber]

When I dispose my JsObjectWrapperBase-derived object in the DisposeAsync of a component, I get an exception that JsRuntime is null. The problem is from there:

public class JsRuntimeObjectRef : IAsyncDisposable
  {
    internal IJSRuntime JsRuntime { get; set; }

    [JsonPropertyName("__jsObjectRefId")]
    public int JsObjectRefId { get; set; }

    public async ValueTask DisposeAsync()
    {
      JsRuntimeObjectRef runtimeObjectRef = this;
	  // HERE: runtimeObjectRef.JsRuntime is null in the next line
      await JSRuntimeExtensions.InvokeVoidAsync(runtimeObjectRef.JsRuntime, "browserInterop.removeObjectRef", new object[1]
      {
        (object) runtimeObjectRef.JsObjectRefId
      }).ConfigureAwait(false);
      GC.SuppressFinalize((object) runtimeObjectRef);
    }
  }

Not sure what might be causing this, it's not null in the object itself, so I added this method to my object:

    public new async ValueTask DisposeAsync()
    {
        // NOTE: For some reason JsObjectRef's JsRuntime is null in DisposeAsync, so this is copied from there
        await JsRuntime.InvokeVoidAsync("browserInterop.removeObjectRef", new object[1]
        {
            JsObjectRef.JsObjectRefId
        });
        GC.SuppressFinalize(JsObjectRef);
        GC.SuppressFinalize(this);
    }

I'm using Blazor WASM 6.0.6 on .NET 6.