[3.9] bpo-27334: roll back transaction if sqlite3 context manager fails to commit (GH-26202)#27944

pablogsal merged 2 commits intopython:3.9python/cpython:3.9from

erlend-aasland:backport-7ecd342-3.9erlend-aasland/cpython:backport-7ecd342-3.9Copy head branch name to clipboard