dnd 5e – How does flexible casting interact with itself?


As I find builds about the Coffeelock (for peoples who doesn’t know, it’s a build that hollow you to have an infinite amount of 5th level spells slot RAW, involving a sorcerer multiclassing in warlock), I turned out asking myself a question:

How does flexible casting interact with itself?

To be clear, I want to know if you can turn created spell slots into sorcery points RAW (which could mean you have an infinite source of sorcery points if you need to do metamagic with your infinites spells).