andrepacak

I received the following error while editing IncA code: ``` java.lang.AssertionError: You can't edit unregistered node at jetbrains.mps.ide.editor.MPSEditorOpener.doOpenNode(MPSEditorOpener.java:81) at jetbrains.mps.ide.editor.MPSEditorOpener.openNode(MPSEditorOpener.java:77) at jetbrains.mps.ide.navigation.NavigationSupportImpl.openNode(NavigationSupportImpl.java:54) at org.inca.ui.plugin.MouseListener$1.run(MouseListener.java:63) at jetbrains.mps.smodel.ActionDispatcher.dispatch(ActionDispatcher.java:84) at jetbrains.mps.smodel.ActionDispatcher.lambda$wrap$0(ActionDispatcher.java:105) at jetbrains.mps.smodel.LockRunnable.run(LockRunnable.java:60)...