Status: New Owner: tudor.gi...(a)gmail.com Labels: Type-Defect Priority-Medium Component-Roassal Milestone-4.7 New issue 818 by tudor.gi...(a)gmail.com: Roassal tree layout does not preserve the order of nodes http://code.google.com/p/moose-technology/issues/detail?id=818 In Pharo 1.4, Collection>>difference: uses a set, thus, it does not preserve the order of the elements. Because of this, the following method has to be rewritten: ROAbstractGraphLayout>>childrenFor: aNode except: aNodeCollection ^(self childrenFor: aNode) difference: aNodeCollection