Prevent the background task's expiration from stopping the main sync loop.

ElementX/Sources/Application/AppCoordinator.swift

@@ -26,8 +26,6 @@ class AppCoordinator: AppCoordinatorProtocol, AuthenticationFlowCoordinatorDeleg
 
     /// Common background task to continue long-running tasks in the background.
     private var backgroundTask: UIBackgroundTaskIdentifier?
-
-    private var isSuspended = false
     
     private var userSession: UserSessionProtocol? {
         didSet {
@@ -929,8 +927,6 @@ class AppCoordinator: AppCoordinatorProtocol, AuthenticationFlowCoordinatorDeleg
             }
         }
 
-        isSuspended = true
-
         // This does seem to work if scheduled from the background task above
         // Schedule it here instead but with an earliest being date of 30 seconds
         scheduleBackgroundAppRefresh()
@@ -944,12 +940,8 @@ class AppCoordinator: AppCoordinatorProtocol, AuthenticationFlowCoordinatorDeleg
             appMediator.endBackgroundTask(backgroundTask)
             self.backgroundTask = nil
         }
-
+        
-        if isSuspended {
+        startSync()
-            startSync()
-        }
-
-        isSuspended = false
     }
     
     // MARK: Background app refresh
@@ -989,7 +981,11 @@ class AppCoordinator: AppCoordinatorProtocol, AuthenticationFlowCoordinatorDeleg
         scheduleBackgroundAppRefresh()
         
         task.expirationHandler = { [weak self] in
-            self?.stopSync() // Attempt to stop the sync loop cleanly.
+            if UIApplication.shared.applicationState != .active {
+                // Attempt to stop the sync loop cleanly, only if the app not already running
+                self?.stopSync()
+            }
+            
             MXLog.info("Background app refresh task expired")
             task.setTaskCompleted(success: true)
         }