Mateusz Grotek wrote
....... collapse CollapsedMorph new beReplacementFor: self ....... |morph collapsedMorph| morph := Morph new. "collapse it" collapsedMorph := morph collapse. "uncollapse it" collapsedMorph collapseOrExpand. .......
That will turn my morphA into a CollapsedMorph, where originally it is a subclass of a subclass of Morph, thus loosing morphA"s behaviour.
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