I agree that this is an awkward but very desirable property for a system to have. I was calling this "responsive idempotence" when discussing how the GNU coreu

I agree that this is an awkward but very desirable property for a system to have. I was calling this "responsive idempotence" when discussing how the GNU coreutils are tested: https://www.pixelbeat.org/docs/coreutils-testing.html https://www.pixelbeat.org/docs/coreutils-testing.html