Serialization issues after the recent fast-json-stringify update

[a88zach]

Prerequisites

• I have written a descriptive issue title
• I have searched existing issues to ensure the bug has not already been reported

Fastify version

4.2.0

Plugin version

No response

Node.js version

16.15.1

Operating system

macOS

Operating system version (i.e. 20.04, 11.3, 10)

12.4

Description

After the release of version 4.2.0, we are seeing serialization issues with complex schemas created with Typebox.
I've included a reproducible example below.

This is likely the cause: #4049

Steps to Reproduce

clone https://github.com/a88zach/fastify-schema-issue

install modules and run the test

The test will fail with the following error

no schema with key or ref \"805a7e61-8dcb-423a-b9f7-24dd1496e728#/items/anyOf/0/properties/type/anyOf/0\"

Expected Behavior

Test should pass as the schema and response are both valid

[mcollina]

@ivan-tymoshenko could you take a look?