CVE-2026-42284 GitPython: Unsafe option check validates multi_options before shlex.split transforms it

GitPython is a python library used to interact with Git repositories. Prior to version 3.1.47, clone validates multioptions as the original list, then executes shlex.split" ".joinmultioptions. A string like "--branch main --config core.hooksPath=/x" passes validation starts with --branch, but aft...