An unselected or failed parse scope is recorded by the analysis producer as an unknown-kind node whose observations are all unavailable. Application version comparison treated that marker as a positive entity, so comparing complete analysis with source-selected analysis reported it as added or removed. One-sided nodes whose observations are all unavailable now stay unknown with availability and coverage dimensions and the producer's limitations, regardless of opposite coverage. Fixes #5534 Co-Authored-By: Claude Opus 5.5 <[email protected]>