Update contracts/token/ERC20/extensions/draft-ERC20TemporaryApproval.sol

Co-authored-by: Ernesto García <[email protected]>

contracts/token/ERC20/extensions/draft-ERC20TemporaryApproval.sol

@@ -82,6 +82,8 @@ abstract contract ERC20TemporaryApproval is ERC20, IERC7674 {
     /**
      * @dev {_spendAllowance} override that consumes the temporary allowance (if any) before eventually falling back
      * to consuming the persistent allowance.
+     * NOTE: This function skips calling `super._spendAllowance` if the temporary allowance
+     * is enough to cover the spending.
      */
     function _spendAllowance(address owner, address spender, uint256 value) internal virtual override {
         // load transient allowance