AspNetCore 8 Web API using JwtBearer stops returning user context if you upgrade to System.ServiceModel.Federation 8.1.x

**Describe the bug**
AspNetCore 8 Web API using Microsoft.AspNetCore.Authentication.JwtBearer stops returning user context if you upgrade to System.ServiceModel.Federation 8.1.x

**To Reproduce**
Steps to reproduce the behavior:
1. Create a AspNetCore 8 WebAPI project and configure it to use JwtBearer Authentication with the appropriate requirements and handlers.
2. Create a connected WCF Service (import in System.ServiceModel.Federation)
3. Upgrade System.ServiceModel.Federation to version 8.1.x
4. Put a breakpoint in the authentication handler.
5. The context.User object will be null.
6. Downgrade to 8.0.0
7. context.User object works as expected.

**Expected behavior**
The context.User object should continue to work if you also use System.ServiceModel.Federation

**Screenshots**
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**Additional context**