How to handle predicate with optionals in SwiftData

Xcode: 15.1

I've got (simplified) model with relationship many-to-many defined as follows

@Model
final class Item {
    var title: String
    @Relationship(inverse: \Tag.items) var tags: [Tag]?

    init(_ title: String) {
        self.title = title
    }
}

@Model
final class Tag {
    var name: String
    var items: [Item]?

    init(_ name: String) {
        self.name = name
    }
}

and a view with a query

struct ItemsView: View {
    @Query var items: [Item]

    var body: some View {
        List {...}
    }

    init(searchText: String) {
        _items = Query(filter: #Predicate<Item> { item in
            if (searchText.isEmpty) {
                return true
            } else {
                return item.tags!.contains{$0.name.localizedStandardContains(searchText)}
            }
        })
    }
}

This code compiles but fails at runtime with an error: Query encountered an error: SwiftData.SwiftDataError(_error: SwiftData.SwiftDataError._Error.unsupportedPredicate)

It looks like Predicate does not like optionals cause after changing tags and items to non optionals and the predicate line to

item.tags.contains{$0.name.localizedStandardContains(searchText)}

everything works perfectly fine.

So, my question is, does anybody know how to make it work with optionals?

Full code: https://github.com/m4rqs/PredicateWithOptionals.git