Merge remote-tracking branch 'origin/master' into 1.10

# Conflicts:
#	Source/Engine/Level/Prefabs/Prefab.Apply.cpp

Source/Engine/Level/SceneObjectsFactory.cpp

@@ -246,9 +246,7 @@ SceneObject* SceneObjectsFactory::Spawn(Context& context, const ISerializable::D
 
 void SceneObjectsFactory::Deserialize(Context& context, SceneObject* obj, ISerializable::DeserializeStream& stream)
 {
-#if ENABLE_ASSERTION
-    CHECK(obj);
-#endif
+    CHECK_DEBUG(obj);
     ISerializeModifier* modifier = context.GetModifier();
     LogContextScope logContext(obj->GetID());