[3.10] gh-98703: Fix asyncio proactor_events calling _call_connection_lost multiple times (GH-98704)#98753

miss-islington merged 1 commit intopython:3.10python/cpython:3.10from

miss-islington:backport-8a75542-3.10miss-islington/cpython:backport-8a75542-3.10Copy head branch name to clipboard