Crashes have been caused by NSNull objects in mergeToManyRelationshipFromSubordinatePropertyChangeValue and convertToManyRelationshipValuesToGlobalIdentifiersInPropertyChangeValue after deleting all objects and merging. Construct tests to cause these nulls, and ensure no crashes occur.
Crashes have been caused by NSNull objects in mergeToManyRelationshipFromSubordinatePropertyChangeValue and convertToManyRelationshipValuesToGlobalIdentifiersInPropertyChangeValue after deleting all objects and merging. Construct tests to cause these nulls, and ensure no crashes occur.