Use &mut self in invoice updaters, not take-self-return-Self#1331

jkczyz merged 1 commit intolightningdevkit:mainlightningdevkit/rust-lightning:mainfrom

TheBlueMatt:2022-02-no-copy-invoice-fieldsTheBlueMatt/rust-lightning:2022-02-no-copy-invoice-fieldsCopy head branch name to clipboard