SwiftUI iOS 14 Text date formatter calendar not applied

I am using DateFormatter with a custom calendar in Text(_:formatter:), but the text does not display the correct date. But if using DateFormatter.string(from:), the correct date will be displayed.

So, what is the difference?

The example:

extension DateFormatter {
    
    static func hijri(_ format: String) -> DateFormatter {
        let formatter = DateFormatter()
        formatter.dateFormat = format
        formatter.calendar = .init(identifier: .islamicUmmAlQura)
        return formatter
    }
}

struct TextFormatterView: View {
    
    var body: some View {
        VStack {
            Text(DateFormatter.hijri("dd, MMMM yyyy").string(from: Date()))
            // 24, Rabiʻ I 1445 👍

            Text(Date(), formatter: DateFormatter.hijri("dd, MMMM yyyy"))
            // 09, October 2023 ❌
        }
    }
}