There are few key properties in self-reflection - (1) Revaluate the decision independently, (2) Focus on the process and see if you come to the same conclusion, (3) If the conclusion is not the same, make the decision maker accountable. If it is the same, recheck the process to see if something is amiss. and (4) Revisit the original decision.

I don't about the details at Github but it seems they have indeed self-reflected swiftly.