[3.11] gh-83004: Clean up refleak in _pickle initialisation (GH-98841)#99165

miss-islington merged 1 commit intopython:3.11python/cpython:3.11from

miss-islington:backport-d3b82b4-3.11miss-islington/cpython:backport-d3b82b4-3.11Copy head branch name to clipboard