I know it's unnerving, but it's really all right, Remus. I've examined and exhaustively tested the underlying spell architecture. The 'Order Only' designation is built into the root of the spell architecture to supercede everything else. But the bloody Ministry set up the so-called 'mudblood' parameters so that the journal spell fills in a muggleborn's master's name sutomatically; there's no way around it. But Marvolo won't see it.