Use a dedicated flag to indicate the pending app initialization

deltachat-ios/AppDelegate.swift

@@ -24,6 +24,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
     var notifyToken: String?
     var applicationInForeground: Bool = false
     private var launchOptions: [UIApplication.LaunchOptionsKey: Any]?
+    private var pendingAppInitialization = true;
 
     // purpose of `bgIoTimestamp` is to block rapidly subsequent calls to remote- or local-wakeups:
     //
@@ -50,6 +51,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
     // when the app wakes up from "suspended" state
     // (app is in memory in the background but no code is executed, IO stopped)
     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        pendingAppInitialization = true;
         logger.info("➡️ didFinishLaunchingWithOptions")
         // explicitly ignore SIGPIPE to avoid crashes, see https://developer.apple.com/library/archive/documentation/NetworkingInternetWeb/Conceptual/NetworkingOverview/CommonPitfalls/CommonPitfalls.html
         // setupCrashReporting() may create an additional handler, but we do not want to rely on that
@@ -169,6 +171,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
         }
 
         launchOptions = nil
+        pendingAppInitialization = false
     }
 
     // `open` is called when an url should be opened by Delta Chat.
@@ -220,7 +223,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
 
     func applicationProtectedDataDidBecomeAvailable(_ application: UIApplication) {
         logger.info("➡️ applicationProtectedDataDidBecomeAvailable")
-        if launchOptions != nil {
+        if pendingAppInitialization {
             finishAppInitialization()
         }
     }