[3.13] Correctly fold unknown-8bit originating from encoded words. (GH-142517)#143147

[3.13] Correctly fold unknown-8bit originating from encoded words. (GH-142517)#143147

bitdancer merged 2 commits intopython:3.13python/cpython:3.13from

miss-islington:backport-1e17ccd-3.13miss-islington/cpython:backport-1e17ccd-3.13Copy head branch name to clipboard