Closed as not planned
Description
I confirmed that this was a bug here: python/typing#1286
Here is the final code snippet: https://mypy-play.net/?mypy=master&python=3.10&gist=ecbe2855b2c84a0ed7e5820fae2da90b&flags=strict
I searched this GitHub for similar issues and everything I see seems to imply that PEP 612 is fully supported (older issues that reported bugs were closed).