Fix: The logic of the undo / redo is reversed

Author: Leandro Inocencio

NodeGraphQt/base/commands.py

@@ -336,7 +336,7 @@ def set_visible(self, visible):
         node_view.post_init()
 
     def undo(self):
-        self.set_visible(self.visible)
-
-    def redo(self):
         self.set_visible(not self.visible)
+        
+    def redo(self):
+        self.set_visible(self.visible)