That is indeed a bit confusing. My orginal testing from 2013 does not explicitly refer to the case of simulated walls(but by implication it does). It seems i added it here as what i considered common wisdom. So now i am a confused. When exactly do simulated walls reappear after "destruction"? Also i like to point out that i did refer to C3C 1.22. Other versions may differ, but C3C 1.22 is the one version that matters unless you explicitly refer to say PtW or an even lesser version.
So here we may indeed get different results on different OS versions, different hardware etc.)