global option to disable double evaluation ?

[moodymudskipper]

Basically we could have an option to turn all functions into ignore_refactored OR ignore_original.
By setting ignore_refactored in prod we don't take any risk. Then in dev we keep default use, then we can try ignore_original in prod, then we can remove the original.

The problem is we might be encouraging to have WIP chunks in prod code, which is generally not a great idea.

refactored is ambiguous too taken in isolation, maybe the names ignore_old and ignore_new are better.