a5c12f5f59
Review feedback (#40998): `rm -rf` / `Remove-Item -Recurse -Force` on the install dir is destructive -- a user might still want whatever is there. Rename the broken checkout to a timestamped `<dir>.broken-<ts>` backup and re-clone fresh, so nothing is ever deleted. Transient cleanup of a clone attempt that fails within the same run is left as-is.