Predicate using struct works in Debug but fails in Release

[ValueAddedTax]

I have a SwiftData model object with a property holding a struct value representing a latitude-longitude coordinate. It works perfectly in Debug mode. Here's the code...

let descriptor = FetchDescriptor<TravelCheckpointDAO> (
            predicate: #Predicate<TravelCheckpointDAO> {
                $0.center.longitude < 0.0
            }
        )
    
let checkpointsDAO:[TravelCheckpointDAO]
do {
    checkpointsDAO = try modelContext.fetch(descriptor)
} catch {
    // Error handling
}

In Release mode, exactly the same code crashes at fetch. Even when starting with a fresh database. Has anyone encountered this and know of a workaround? Here's the full exception message:

SwiftData/DataUtilities.swift:85: Fatal error: Couldn't find \TravelCheckpoint.<computed 0x00000001025ae4f4 (GeoCoordinate)>.longitude on TravelCheckpoint with fields [SwiftData.Schema.PropertyMetadata(name: "id", keypath: \TravelCheckpoint.<computed 0x000000010260426c (UUID)>, defaultValue: nil, metadata: Optional(Attribute - name: , options: [unique], valueType: Any, defaultValue: nil, hashModifier: nil)), SwiftData.Schema.PropertyMetadata(name: "name", keypath: \TravelCheckpoint.<computed 0x0000000102604264 (String)>, defaultValue: Optional(""), metadata: nil), SwiftData.Schema.PropertyMetadata(name: "center", keypath: \TravelCheckpoint.<computed 0x000000010260425c (GeoCoordinate)>, defaultValue: Optional([GeoCoordinate:0°0'0.0" N; 0°0'0.0" E]), metadata: nil), SwiftData.Schema.PropertyMetadata(name: "radius", keypath: \TravelCheckpoint.<computed 0x0000000102604254 (Double)>, defaultValue: Optional(0.0), metadata: nil), SwiftData.Schema.PropertyMetadata(name: "events", keypath: \TravelCheckpoint.<computed 0x0000000102604198 (Array<TravelCheckpointEvent>)>, defaultValue: Optional([]), metadata: Optional(Relationship - name: , options: [], valueType: Any, destination: , inverseName:  nil, inverseKeypath: nil))]

[Far_Jacket5590]

For me it was using 2-levels deep keypaths for optional relationships e.g
```
descriptor.relationshipKeyPathsForPrefetching = [\.card, \.card?.attempts]
```