//System.out.println("LazyViewpoint2@" + System.identityHashCode(this) + " getChildren() = " + children.length);
if (children == org.simantics.browsing.ui.content.ViewpointContribution.PENDING_CONTRIBUTION) {
//System.out.println("LazyViewpoint2@" + System.identityHashCode(this) + " getChildren() = " + children.length);
if (children == org.simantics.browsing.ui.content.ViewpointContribution.PENDING_CONTRIBUTION) {