NSDiffableDataSourceSnapshot crash on beta 6 and 7

Until beta 5, creating a NSDiffableDataSourceSnapshot worked for me like this:

let snapshot = NSDiffableDataSourceSnapshot<section, photo="">()

In beta 6 and 7, it crashes when it reaches that point with a "Thread 1: signal SIGABRT" message.

Currently Section and Photo are defined like so:

enum Section {
    case main
}

struct Photo: Hashable {
    let identifier : String
       
    static func == (lhs: Photo, rhs: Photo) -> Bool {
        return lhs.identifier == rhs.identifier
    }
}

Any hints on how to resolve this?