fix set_property

Author: Samy Hocine

NodeGraphQt/base/node.py

@@ -396,6 +396,7 @@ def set_property(self, name, value, push_undo=True):
             if hasattr(self.view, name):
                 setattr(self.view, name, value)
             self.model.set_property(name, value)
+            self.update()
 
     def has_property(self, name):
         """