Following Smith v. Mixon, 788 F.2d 229, 232 (4th Cir. 1986), the 4th Circuit ruled that knowledge, for purposes of the good faith defense under § 550(b)(1) to a fraudulent conveyance claim, "does not mean ‘constructive notice.’" Nor, however, does this actual notice standard, therefore, require actual knowledge of the transfer’s voidability.