Use delegation rather than inheritance.

Author: davidbritch

Todo/Todo/AsyncLazy.cs

@@ -4,7 +4,7 @@
 
 namespace Todo
 {
-    public class AsyncLazy<T> : Lazy<Task<T>>
+    public class AsyncLazy<T>
     {
         readonly Lazy<Task<T>> instance;
 
@@ -22,5 +22,10 @@ public TaskAwaiter<T> GetAwaiter()
         {
             return instance.Value.GetAwaiter();
         }
+
+        public void Start()
+        {
+            var unused = instance.Value;
+        }
     }
 }