Is There a Problem With the Turn Style?

The code did not have checks to identify whether or not a race condition is taking place. We've never happened at the Mt. Gox, the crypto exchange, quote unquote hack that happened back in the day. This also could look like maybe what happened with again, we have no idea. The turns out only knows how to run the function. If you abuse that function, there's no mitigations in place to deal with that.