[3.12] gh-105736: Sync pure python version of OrderedDict with the C version (GH-108098) (#108200)

gh-105736: Sync pure python version of OrderedDict with the C version (GH-108098)
(cherry picked from commit 20cc90c0df3e368fe7cb63d958f0b17a78fa9d0a)

Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>