Describe the bug

If using aiohttp to send a 0-byte payload (as if via io.BytesIO(b'')) to get a very small response, the connection will be incorrectly closed when it could be reused

from adding prints directly to aiohttp to figure out why the connections were not being reused, I confirmed it still initializes write_bytes, but _cleanup_writer is called by payload.on_eof during ClientResponse#start, which leads to the writer being cancelled

when asyncio.CancelledError is raised in write_bytes, conn.close() is called with a comment noting that the body hasn't been fully sent so the connection can't be reused, but in this case that's incorrect - there was nothing to send in the first place!

This same sequence of events happens even if the payload is not empty, though it's not as self-evident that the comment is incorrect

To Reproduce

https://github.com/Tjstretchalot/aiohttp-reuse/blob/main/src/main.py

Expected behavior

I would expect aiohttp to reuse the connection whenever possible, regardless if passed a bytes object or a file-like object

Logs/tracebacks

======== Running on http://0.0.0.0:3003 ========
(Press CTRL+C to quit)
Traceback (most recent call last):
  File "src/main.py", line 43, in <module>
    asyncio.run(main())
  File "Python311\Lib\asyncio\runners.py", line 190, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "Python311\Lib\asyncio\runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "Python311\Lib\asyncio\base_events.py", line 653, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "src\main.py", line 35, in main
    len(session._connector._conns) == 1  # fails here
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: defaultdict(<class 'collections.deque'>, {})

Python Version

$ python --version
Python 3.11.1

aiohttp Version

$ python -m pip show aiohttp
Version: 3.11.11

multidict Version

$ python -m pip show multidict
Version: 6.1.0

propcache Version

$ python -m pip show propcache
Version: 0.2.1

yarl Version

$ python -m pip show yarl
Version: 1.18.3

OS

Windows 10

Related component

Client

Additional context

No response

Code of Conduct

• I agree to follow the aio-libs Code of Conduct