That is a very tough question to answer for any of us modders I think. I have no idea where one would even attempt to find what houses the blueprints/settings for that. My guess is it’s a function that has not been exposed to us yet by the Devs. Could be very wrong though.
My assumption would be that if the structure got raided and destroyed the resources would regenerate there updated like the rest did, when you had cut it down and it regenerated.