[3.14] gh-148370: prevent quadratic behavior in configparser.ParsingError.combine (GH-148452)#148532

picnixz merged 1 commit intopython:3.14python/cpython:3.14from

miss-islington:backport-2662db0-3.14miss-islington/cpython:backport-2662db0-3.14Copy head branch name to clipboard