revert to old c# specs

Author: roubachof

Sharpnado.TaskLoaderView/TaskLoaderNotifierBase.cs

@@ -167,7 +167,7 @@ public Exception Error
 
         public TimeSpan AutoResetDelay { get; }
 
-        protected object SyncRoot { get; } = new();
+        protected object SyncRoot { get; } = new object();
 
         public abstract void Load(bool isRefreshing = false);
 

Sharpnado.TaskLoaderView/TaskLoaderNotifier{T}.cs

@@ -135,7 +135,7 @@ protected override void OnTaskSuccessfullyCompleted(ITaskMonitor task)
             InternalLogger.Debug(Tag, () => "OnTaskSuccessfullyCompleted()");
             RaisePropertyChanged(nameof(IsSuccessfullyCompleted));
 
-            if (!DisableEmptyState && (Result is null or ICollection { Count: 0 }))
+            if (!DisableEmptyState && (Result == null || (Result is ICollection collection && collection.Count == 0)))
             {
                 InternalLogger.Debug(Tag, () => "Showing empty state");
                 ShowEmptyState = true;