Best is to hope that humans don't commit code with scary bugs or that the bugs aren't discovered and exploited in time before they got patched.
It is best to find a solution for the inevitable instead of hoping it doesn't happen.
For example if core v0.13 doesn't have the same bug as v0.14 running both or better yet running core and another implementation is a good option to avoid such disaster scenarios. Those with bigger stake in the game are already doing it by the way.