Sorry, ignore the bit above about asserting that we're not changing anything... that assertion keeps confusing me. It's asserting that the value hasn't changed out from underneath us... again, I don't actually know why we care, but it still seems like nothing is changing out from underneath us... yet some assertion is failing. AFAIK, there's no way to tell what assertion is failing.
Sorry, ignore the bit above about asserting that we're not changing anything... that assertion keeps confusing me. It's asserting that the value hasn't changed out from underneath us... again, I don't actually know why we care, but it still seems like nothing is changing out from underneath us... yet some assertion is failing. AFAIK, there's no way to tell what assertion is failing.