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]>