从 Finder 打开文件时，SwiftUI 的应用程序(_ openFile:) 从未调用过

我有一个使用SwiftUI构建的单窗口macOS应用程序.应用程序导出一个新的类型标识符，并将自己注册为该文档类型的编辑器.

预期行为:双击该类型的文件时，我希望应用程序启动(如果未运行)，并使用文件路径调用我的AppDelegate应用程序(\uOpenFile:)方法.

实际行为:应用程序启动，但从未调用openFile.如果应用程序已经在运行，则会创建一个新的主窗口，我也不希望这样，并且永远不会调用openFile.

Info.plist:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CFBundleDocumentTypes</key>
    <array>
        <dict>
            <key>CFBundleTypeName</key>
            <string>Launch Tester File</string>
            <key>CFBundleTypeRole</key>
            <string>Editor</string>
            <key>LSHandlerRank</key>
            <string>Default</string>
            <key>LSItemContentTypes</key>
            <array>
                <string>com.mrrsoftware.ltfile</string>
            </array>
        </dict>
    </array>
    <key>UTExportedTypeDeclarations</key>
    <array>
        <dict>
            <key>UTTypeConformsTo</key>
            <array>
                <string>public.json</string>
            </array>
            <key>UTTypeDescription</key>
            <string>Launch Tester File</string>
            <key>UTTypeIcons</key>
            <dict/>
            <key>UTTypeIdentifier</key>
            <string>com.mrrsoftware.ltfile</string>
            <key>UTTypeTagSpecification</key>
            <dict>
                <key>public.filename-extension</key>
                <array>
                    <string>ltfile</string>
                </array>
            </dict>
        </dict>
    </array>
</dict>
</plist>

App file:

import SwiftUI

@main
struct LaunchTesterApp: App {
    @NSApplicationDelegateAdaptor private var appDeletate : MyAppDelegate
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
        .commands {
            CommandGroup(replacing: .newItem, addition: { })
        }
    }
}

class MyAppDelegate: NSObject, NSApplicationDelegate, ObservableObject {
    func applicationWillFinishLaunching(_ notification: Notification) {
        print("WillFinishLaunching")
    }
    
    func applicationDidFinishLaunching(_ notification: Notification) {
        print("DidFinishLaunching")
        NSWindow.allowsAutomaticWindowTabbing = false
    }
    
    func application(_ sender: NSApplication, openFile filename: String) -> Bool {
        print( "AppDelegate openFile: \(filename)")
        return true
    }
}

如何让应用程序调用我的AppDelegate应用程序(\uOpenFile:)方法，而不是打开新窗口？