Comment 9 for bug 1382575

This is a redux of bug 1314409.

Just for completeness sake, we discussed this at length this week and we can't find where this has regressed; in fact, the isolation level as far as we can tell has never changed; it was erroneously thought to have been changed in bug 1314409, but we don't think that change ever actually did anything.

If that's true, and this indeed has regressed from 1.5, it's not a factor of changing the isolation level, but something else in the lifecycle transitions that is making this prone to races. I'm not sure what that could be.