SwiftUI weird multiline text justification

Question

I have a multiline Text that does not correctly fill out the available width. The code is as follows:

struct ContentView: View {
    let title = "Standard 1 hour - SYLVAIN MASSON"
    
    var body: some View {
        VStack {
            Text(self.title)
                .multilineTextAlignment(.leading)
                .border(Color.yellow, width: 1)
                .frame(maxWidth: .infinity, alignment: .leading)
                .border(Color.green, width: 2)
            Text(self.title)
                .lineLimit(0)
        }
        .padding(60)
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
            .previewDevice("iPhone 12 mini")
    }
}

The result in the preview (running as an iPhone 12 mini) is as follows:

As shown by the second Text, the available space is such that I would expect the first Text to display two lines:

Standard 1 hour - SYLVAIN
MASSON

Instead it displays

Standard 1 hour -
SYLVAIN MASSON

Why?