For users who have used Zfs expansion and experiencing this problem, is it best to just use a platform like backblaze to backup and recreate the pool? Is it possible for a fix to work for previous expansions or is this data currently lost and a future fix would not be able to fix it retroactively. I kind of understand the cause and am wondering if it’s worth trying to fix it, or to just wait and see what comes from zfs issue 17784