Polymorphic model binding limitations

It seems that **Polymorphic model binding** has critical limitations worth, if not addressing, at least mentioning.
Probably complex objects, that is, objects containing other, even non-polymorphic objects are not supported .
The problem is described [here](https://stackoverflow.com/questions/73238046/json-deserialization-of-polymorphic-and-complex-objects-in-asp-net-core-without)

---
#### Document Details

⚠ *Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.*

* ID: cfb00531-4ac6-8bf6-9bd8-1eed6446397f
* Version Independent ID: ed418d09-6c33-699a-0d48-9aabc99457be
* Content: [Custom Model Binding in ASP.NET Core](https://docs.microsoft.com/en-us/aspnet/core/mvc/advanced/custom-model-binding?view=aspnetcore-6.0#polymorphic-model-binding)
* Content Source: [aspnetcore/mvc/advanced/custom-model-binding.md](https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/mvc/advanced/custom-model-binding.md)
* Product: **aspnet-core**
* Technology: **aspnetcore-mvc**
* GitHub Login: @ardalis
* Microsoft Alias: **riande**