From e9e0de662ba43d48dbd289db13bb28c2035bc6ac Mon Sep 17 00:00:00 2001
From: Jeremy Koritzinsky <jkoritzinsky@gmail.com>
Date: Tue, 24 Oct 2017 18:08:03 -0500
Subject: [PATCH] Fix NRE

---
 src/Avalonia.Base/AvaloniaObject.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Avalonia.Base/AvaloniaObject.cs b/src/Avalonia.Base/AvaloniaObject.cs
index 7b978175bd..456db70d77 100644
--- a/src/Avalonia.Base/AvaloniaObject.cs
+++ b/src/Avalonia.Base/AvaloniaObject.cs
@@ -595,7 +595,7 @@ namespace Avalonia
         }
 
         protected void SetAndRaise<T>(AvaloniaProperty<T> property, Action<T, Action<Action>> setterCallback, T value, Predicate<T> pendingSetCondition = null)
-            => directDelayedSetter.SetAndNotify(property, (val, notify) => setterCallback((T)val, notify), value, o => pendingSetCondition((T)o));
+            => directDelayedSetter.SetAndNotify(property, (val, notify) => setterCallback((T)val, notify), value, o => pendingSetCondition?.Invoke((T)o) ?? true);
 
         /// <summary>
         /// Tries to cast a value to a type, taking into account that the value may be a