In the software engineering literature, there is something known as "second system effect": the second time a system is designed it will be bloated, over-engineered and ultimately fail, because people want to do it all better, too much so for anyone's good.

But it seems this is only true for complete system designs from scratch after a first system has already been deployed, not for the small "deleted some code and now I'm rewriting it quickly" incidents (for which there is no special term yet?).