Before revision:  We present an outline of the correct proof , clarifying the structure of the relevant funding accounts, and show that the final result in "Funding beyond discounting" is correct, even if the self-financing condition used in the proof is not.
After revision:  We present an outline of the derivation that yields the correct statement of the self-financing condition , clarifying the structure of the relevant funding accounts, and show that the final result in "Funding beyond discounting" is correct, even if the self-financing condition used in the proof is not.