"System.ArgumentException: Key already in the list" error is thrown when using multiple JsonSerializerOptions instances

Reproduction steps:
1. Open the attached “ASDQWE” project
2. Enter the Play Mode
3. Observe the Console Window

Expected result: No error is thrown
Actual result: “System.ArgumentException: Key already in the list" error is thrown

Reproducible with: 2022.3.6f1

Reproducible on: Windows 11
Not reproducible on: No other environment tested

Notes:

• There was no local reproduction
• The issue does not occur consistently