def parent1 = parent1Edge.targetComponent.nodes[0]
        def parent2 = parent2Edge.targetComponent.nodes[0]
        collectOwnStrictVersions(root, ['a']) //root, on all paths
        collectOwnStrictVersions(parent1, ['b', 'c'])
        collectOwnStrictVersions(parent2, ['b', 'd'])

        def child = nextNode()
        def edge1 = edge(parent1, false, null, child)

            }
            edgeExclusions = moduleExclusions.excludeAll(excludedByBoth);
        }
        return edgeExclusions;
    }

    private void collectOwnStrictVersions() {
        List<DependencyState> dependencies = dependencies(computeModuleResolutionFilter(incomingEdges));
        Set<ModuleIdentifier> constraintsSet = null;