[3.15] gh-149521: Do not update last_profiled_frame if it's not changed (GH-149522)#149542

miss-islington wants to merge 1 commit intopython:3.15python/cpython:3.15from

miss-islington:backport-d36e5b8-3.15miss-islington/cpython:backport-d36e5b8-3.15Copy head branch name to clipboard