[Pharo-project] MorphTreeMorph>>mouseEnter: broken in Moose

I get an infinite loop of exceptions in the Moose Finder when I load Moose into the latest Pharo. LazyMorphTreeMorph does not understand keyboardFocusOnMouseDown ... Sleuthing shows: MorphTreeMorph>>mouseEnter: event "Changed to take keyboardFocusOnMouseDown preference into account." super mouseEnter: event. self wantsKeyboardFocus ifFalse: [^self]. self keyboardFocusOnMouseDown ifFalse: [self takeKeyboardFocus] But keyboardFocusOnMouseDown is not implemented anywhere in the system. What gives? Alain, it seems this method comes from you. What gives? I am unsure what to do ... - on