The files/ls path eagerly reads a delta check-in's B-card baseline and parsed it through the strict reference parser. fossil's own 2008 cvs2fossil-era manifests carry F cards with a dangling trailing separator after the hash -- a space where a perm token would go -- which the section 4.2 grammar has no production for, so the strict parser rejects them as corrupt. When such a manifest is a delta's baseline, the rejection surfaced as BaselineUnresolvable and the check-in's whole file set vanished.

The target-manifest read path already tolerates this shape through parseForImport; the baseline path now does too. The strict parser still runs first and stays the sole grammar oracle; tolerance engages only when a well-framed, Z-valid artifact is rejected, strips exactly one trailing separator per F card, re-seals the checksum, and re-runs the strict parser -- any other malformation is still refused. The tolerated normalized copy is owned by the parsed baseline and freed with it. closed check-in: 7bb5af134e user: dmestas tags: iss7b