Breaking change in AnyType deserialization on Input types

[Andrej-Peplinski]

Is there an existing issue for this?

• I have searched the existing issues

Product

Hot Chocolate

Describe the bug

We started to use hotchocolate in version 11 where it was possible to deserialize arbitrary input object (scalar and complex). When using complex input object, we used to get a deserialized dotnet representation being a IReadOnlyDictionary<string, object> (as it's also stated in the documentation).
However, this functionality has been broken in version 12 where the deserialized version if of type System.Object. As a consequence, all information send to the frontend is lost - which prevents us from from updating the HotChocolate packages. Furthermore, I have tried version 13.0.0.-rc.1 where the complete deserialization fails with an InvalidCastException.

Steps to reproduce

1. Please clone the repro-project.
2. The solution contains 2 (almost) identical projects using the same graphql schema - but using either HotChocolate version 11 or 12.
3. In both projects set a breakpoint in the ParameterValuePair.Value.set property found in Program.cs.
4. Start debugging either of the 2 project and copy the queries (from the Sample Queries.txt) into the Banana Cake Pop.
5. Excute the simpleObjectAsDictionary mutation, and, once the breakpoint is hit, observe the value.

• 
• 

Relevant log output

No response

Additional Context?

Another way of "just" viewing the deserialisation defect is running the two project and inspecting the responses. In version 11 one show see this:

And in version 12 this:

Version

11.3.7, 12.6, 13.0.0-rc.1

[michaelstaib]

The repro does not exist
https://github.com/Andrej-Peplinski/HotChocolateInputTypeAnyDeserialization

can you recreate it?

[michaelstaib]

Wait ... i try to create a tests from the infos you provided.

[Andrej-Peplinski]

I have now attached the solution here in case there are problems clone my repository from Github: HotChocolateInputTypeAnyDeserialization - Kopie.zip