The docs on Task Groups say:

Two base exceptions are treated specially: If any task fails with KeyboardInterrupt or SystemExit, the task group still cancels the remaining tasks and waits for them, but then the initial KeyboardInterrupt or SystemExit is re-raised instead of ExceptionGroup or BaseExceptionGroup.

This makes me believe, given the following code:

import asyncio

async def task():
    await asyncio.sleep(10)

async def run() -> None:
    try:
        async with asyncio.TaskGroup() as tg:
            t1 = tg.create_task(task())
            t2 = tg.create_task(task())
        print("Done")
    except KeyboardInterrupt:
        print("Stopped")

asyncio.run(run())

running and hitting Ctrl-C should result in printing Stopped; but in fact, the exception is not caught:

^CTraceback (most recent call last):
  File "<python>/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<python>/asyncio/base_events.py", line 685, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "<module>/__init__.py", line 8, in run
    async with asyncio.TaskGroup() as tg:
  File "<python>/asyncio/taskgroups.py", line 134, in __aexit__
    raise propagate_cancellation_error
  File "<python>/asyncio/taskgroups.py", line 110, in __aexit__
    await self._on_completed_fut
asyncio.exceptions.CancelledError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<frozen runpy>", line 189, in _run_module_as_main
  File "<frozen runpy>", line 148, in _get_module_details
  File "<frozen runpy>", line 112, in _get_module_details
  File "<module>/__init__.py", line 15, in <module>
    asyncio.run(run())
  File "<python>/asyncio/runners.py", line 194, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "<python>/asyncio/runners.py", line 123, in run
    raise KeyboardInterrupt()
KeyboardInterrupt

What am I missing? What is the correct way of detecting KeyboardInterrupt?