[3.14] gh-138372: Fix SyntaxWarning for erroneous t-string subscription (GH-138375)#138392

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

miss-islington:backport-5493b46-3.14miss-islington/cpython:backport-5493b46-3.14Copy head branch name to clipboard