Ah this makes a lot of sense, perhaps the posted flag doesn't get reset e.g. if this branch gets followed: https://source.chromium.org/chromium/chromium/src/+/m

Ah this makes a lot of sense, perhaps the posted flag doesn't get reset e.g. if this branch gets followed: https://source.chromium.org/chromium/chromium/src/+/main:v8/src/heap/finalization-registry-cleanup-task.cc;l=52?q=is_finalization_registry_cleanup_task_posted&ss=chromium%2Fchromium%2Fsrc https://source.chromium.org/chromium/chromium/src/+/main:v8/...